Marco Tabini

It's time for another roundup of new iPhone cases, and as is our tradition, we've uncovered a wide variety of styles and designs. This week, we go from the very thin to the depths of the oceans, and from the courts of an NBA game to the festive atmosphere of a block party.

Formula 4. Image source: ElementCaseElementCase: The Skate Legends Series gives you the chance to place your favorite skateboard design on one of the company's cases, including the Formula 4 (iPhone 4 and 4S; $40), the COMP (iPhone 4 and 4S; $100), and the Vapor Pro (iPhone 4 and 4S; $150). Each case features excellent protection and is built using a variety of materials; dozens of designs are available.

There's much to like in the third-generation iPad, from its amazing screen to its great battery life. And its popularity means a vibrant ecosystem of cases and case vendors. These undisputed stars of our weekly roundups keep coming up with new and exciting ways to keep your tablet safe while adding a splash of style and custom features.

Hexa iPad Camalen: The Hexa iPad (iPad 3; $115) is a folio case made from high-quality, full-grain Turkish leather that is capable of adapting to a large number of viewing angles. It works in both landscape and portrait orientation, switching easily from one to the other thanks to its clever construction. The case comes in black, tea, tan, or black floater.

Wednesday's release of the third-generation iPad spawned so many iPad-case announcements that yesterday's roundup simply wasn't enough to hold them all. So this week we've got two iPad-case roundups (Plus, I just wanted to use another headline inspired by The Shining.)

Camalen: The Armor (iPad 3; $79) is a leather case that features a two-piece assembly to allow maximum freedom of movement. It's designed to work in conjunction with Apple's Smart Cover, offering additional protection during transport. It comes in black, tea, white floater, black floater, or red floater.

Upgrading to a new version of OS X is a process that is always fraught with peril; no matter how smooth Apple tries to make the transition-and, by all accounts, the company makes it very smooth indeed-there always a number of factors that are outside of the normal upgrade process and must be researched and anticipated, lest they trip up the unwary user and cause all sorts of problems.

One of these steps into the unknown is figuring out what's going to happen to your peripherals once you install the new operating system. Printers, in particular, are tough to figure out: the wide variety of manufacturers and models can make determining whether all will be well post-upgrade a challenge.

The iPad 2 has been on the market for a nearly five months, but the flood of new cases hasn't stopped. Which is good for us, and you, because it means yet another iPad case roundup.

Cocoon: The Grid-It (iPad and iPad 2; $30) is a wonder for iPad users who like to keep things organized. With enough pockets and straps for just about anything from a pack of chewing gums to a charging cable, the Grid-It is sure to keep things in check no matter where you are. It's made of synthetic material and comes in black.

Do cell phones cause cancer? Nobody really knows for sure, but scientists are determined to keep an eye on the ever-evolving evidence that continues to accumulate on the subject.

That's the gist of a report recently released by the World Health Organization's International Agency for Research on Cancer (IARC), the United Nations body responsible for oncological studies. In the report, IARC scientists have classified cell phone usage as a possible cause of cancer, meaning that, while the data currently available is still inconclusive, the subject deserves further research before a call can be made one way or another.

Buying a printer shouldn't be difficult, but often, it is. That's partly because of the vast abundance of technologies, manufacturers, and models to choose from.

In order to make an informed decision, you need to consider issues far beyond the basic cost of purchasing and owning the printer and focus on factors like speed, paper capacity, and ink technology.

The printing industry is a curious mix of old and new--a world rich with history that harks back hundreds of years, but relies on technology that changes and improves all the time.

The bad part is that dealing with the challenges presented by a print job-from business cards to posters-can be difficult, particularly if you have never worked with a print shop before and don't have the budget to contract a professional to handle the process for you.

Welcome to our latest iPad case roundup, where we scour the deepest recesses of the Internet to bring you the latest-and sometimes the strangest-in the world of tablet protection. This week's installment is short, but it takes us into the realm of the eclectic with some unique designs. Let's tuck right in!

Dead.net: The Skeleton and Roses (iPad; $78) is not your typical iPad case. Made entirely of hand-sewn leather, it features the skull-and-roses logo from the Grateful Dead's 1971 self-titled album. With its unique design, this case will protect your iPad and advertise you as a Deadhead wherever you go.

Depending on the kind of project, printing can be time-consuming and complicated. Despite the fact that an increasing number of documents originate in digital format, you cannot always avoid printing hard copies. Because not every household or office has access to a quality printer, and even the most cost-conscious business owner will not look fondly on the idea of collating and stapling 1,000 copies of a catalog or instruction manual, the option of choosing online printing services can save time, money, and hassle.

A few years ago, the use of professional printing services would have meant a trip to a photography store or print shop, with the associated wait and expense. These days, mercifully, you can handle the entire process, end to end, from the comfort of your home or office.

This week's roundup of protection for the iPad and iPad 2 features a number of luxurious and elegant accessories-the kind that you'd find in the designer bag of a high-powered executive or discretely tucked away in the briefcase of an international man of action. And why not? After all, Apple's tablet is as close to the perfect marriage between form and function as the industry has yet achieved. If James Bond were in the market for an iPad to use in his new Aston Martin, he'd be looking for a case here, too.

Bella: The Smart Libretto (iPad 2; $100) is a folio-style case made of genuine leather that can double as a typing or viewing stand. It is available in black, red, tan, or brown.

As the saying goes, April showers bring May flowers-not to mention some of the nastiest bouts of flu of the whole year. Judging from this special mid-week installment's crop of cases, bags, and protectors, however, our iPads will at least get plenty of protection from the vagaries of the weather.

G-Form: If Wolverine ever bought an iPad 2, he would undoubtedly want to carry it around in one of G-Form's new Extreme Sleeves (iPad & iPad 2; $50), which look like they were plucked right out one of Jack Kirby's early installments of The X-Men. The cover, which is soft and flexible, yet tough and durable, is available in black or yellow and can even accommodate a Smart Case-clad iPad 2.