One of the more interesting SkyDrive features--and the one that might give Microsoft the best chance at taking market share from some of its competitors--is its Office Web Apps integration. This gives you the ability to create, view, and edit Office files from within the Web version of SkyDrive. If you're running a supported version of Office, you can open a Web App file in desktop mode in a click of a button, or save the file locally. I'm not an Office 365 user, and usually opt for Google Docs if I want to create and work on documents online. But I am a regular user of the traditional desktop versions of Office and found the SkyDrive-Web Apps integration productive and relatively pain-free. It is one of the features that's likely going to keep me coming back.