Eric Dahl, PC World, Richard Baguley

LG introduced today today the Optimus Vu, a combo tablet-smartphone LTE device with a 5-inch display to support easier multimedia viewing and ebook reading.  

The Optimus Vu will be on display at the Mobile World Congress next week and will be introduced in Korea in March, LG representatives say; no global availability or pricing was disclosed.

Few tools of modern technology have become as prevalent as the cell phone, which allows you to be in touch (almost) all the time, (almost) anywhere. And you can do more than just talk--today's phones let you send and receive email and text messages, surf the Web, and play music and videos. Sifting through the sea of service plans and handsets can be difficult, but we'll walk you through what you need to know to get the phone and service plan that are right for you.

If you don't have to own the latest and greatest smartphone, there’s no time like the present to buy a new one. From the newest iPhone to an Android superphone to a business-friendly Windows Phone, you can find the right phone for you. Before you hit the stores, however, do a bit of research and read our guide so that you'll know exactly what to look for.

Here is the full text of Steve Jobs' resignation letter:

Wednesday August 24, 2011, 6:34 pm EDT

The good news is, Sony shares are up off reports the PlayStation Network, Sony Online Entertainment, and media-streaming service Qriocity returned from the hereafter this weekend. The bad news is, it’s one of those part-zombie resurrections: the PlayStation Network’s only partly working, and even then, only for some.

Sometimes simply deleting files isn't good enough. In this how-to video segment, PC World explains a number of simple techniques for permanently and securely removing sensitive data from old drives before recycling or disposing of them.

It can also compress files using Zip compression, securely delete files and kick off other utilities (such as Regedit and a command prompt).

Although it is designed to act as a demo for the $40 commercial utility PowerDesk 6 Standard, it's a useful program in its own right, and runs without time limitations or restrictions. The commercial version has a much wider range of features, including the ability to rename groups of files at once, plus the ability to batch convert groups of files at once from one format to another.

Facebook is holding a press conference at 10 a.m. PT Monday where it will announce a new e-mail offering for its 500 million members, PCWorld has learned. If you would like to follow a live stream video feed of the event you can do so here.

facebookinnovations on livestream.com. Broadcast Live Free

Adding a second monitor can seriously boost your productivity, especially if you work with large images or spreadsheets. It's also extremely simple. We'll show you how to do it in this step-by-step guide.