The Android mobile operating system has an impressive set of keyboard shortcuts to help you fly through your phone without digging through the menus. A couple of quick key presses are all you need for most common tasks.

So what are you waiting for? Bookmark this list and get to know Android in a whole new way.

When Google unveiled its open source Chrome OS on Thursday, many commentators were quick to dismiss the new operating system as unimpressive and underwhelming. Citing everything from the browser interface that represents the entirety of the user experience to its limited hardware support and inability to install apps or play PC games, early critics have slammed Google's cloud-based OS for being exactly what it is intended to be: lean, fast, and simple.

To my eye, all this criticism appears to miss the point of Chrome OS--and indeed, the point of most of Google's services. Of course, this is nothing new for Google.

I used to think Ubuntu was destined to lead Linux into the mainstream, but now it's looking much more like Google--not Canonical--will be the first Linux vendor to truly challenge Microsoft.

The combination of pumped-up technical features and relatively low prices are giving vendors with open source-based products more inroads to corporate networks than ever before.

Watch a slideshow of these 11 open source companies.

The open source community operates from a different point of view as it relates to intellectual property ownership and in generally abhors the concept of patents. However, patent and intellectual property rights exist and the open source community has been forced to both defend itself from patent infringement suits and pursue those who misappropriate open source code.

If you do a lot of writing, a desktop dictionary tool can be a powerful asset. With it, you can highlight a word within any program and then click the dictionary icon in your menu bar, which will open a new Web browser window containing the definition of the word.

Microsoft has long pooh-poohed Linux as a desktop competitor. But a recent filing with the Security and Exchange Commission has the company admitting for the first time that Linux represents a significant threat to Windows.

TechFlash reports that in Microsoft's recent annual filing with the SEC, it listed for the first time Ubuntu's maker Canonical, and Linux distributor Red Hat as competitors to its Client division, which makes Windows. Previously, TechFlash says, Red Hat was listed but only as a competitor to its Business and Server & Tools divisions.

The announcement a few days ago of Google's new Chrome OS was simultaneously shocking and expected. It's a typically understated and quietly ambitious move on behalf of Google. It's also proof -- if it were needed -- that Google people are supremely smart. They have their sights firmly set on the future as well as the here and now.

Chrome OS is initially targeted at netbook computers but it's anticipated it will spread to more mainstream computing devices as time goes on. Like Intel's Moblin OS, Chrome OS is a proof of concept that will use the hothouse environment of netbook computing to grow and mature.

As has been predicted for some time, Google has announced a new operating system project: Google Chrome OS. This is separate from Android, Google's mobile phone OS.

Initially aimed at netbooks, but seemingly intended to mature into a platform for all kinds of computing devices, Chrome OS is a "open source, lightweight operating system". It won't be available until the second half of 2010, but the source code will be made available later this year, so I wouldn't be surprised if we see some kind of usable release about that time too.

Moblin is an Intel-created open-source operating system for netbooks and, specifically, the kind of people who use them.

On a technical level this means Moblin is built for the Atom x86 chip found in many netbooks, while on a practical level it means Moblin is an Internet- and multimedia-focused operating system. Moblin is less about knocking-up spreadsheets on the move and more about twittering, updating your Facebook account, and watching movies on the go.