"Until now, the main difference between the way that you use Dropbox and
Microsoft's SkyDrive is that the latter is only available via a web site.
There's no officially supported way to mount your SkyDrive as a virtual drive
in Windows 7, to which you can copy and save files. As of today, that's
changed. Microsoft has finally released a Windows app that integrates your
SkyDrive into the operating system. So now you have a drive which you can use
just like any other, but which is held in the cloud and automatically synced
to your other computers too. Safe, secure, and reliable. Well, as much as any
cloud-based service can be. And be aware that Microsoft has cut the storage
allowance for new accounts, so you only get 7 gig for free instead of 25 but
it's still more than the 2 GB which you get for free with Dropbox."
http://www.techsupportalert.com/content/microsoft-skydrive-finally-gets-its-desktop-app.htm
