Microsoft beat Google Drive to the punch and took a swing at Dropbox for good measure with its SkyDrive update
this week. SkyDrive for Windows lets Windows Vista and Windows 7 PCs
sync SkyDrive files and folders just like Dropbox does. Once you've
installed the software, you can use Windows Explorer the same way with
SkyDrive as you would with any other Windows folder or file.
Hot on Microsoft's heels, Google announced Google Drive shortly afterward. Look for a BYTE review soon.
You can download the free SkyDrive software from https://apps.live.com/skydrive.
The installation includes a quick tutorial. You'll need a Microsoft
Windows Live ID. If you have used SkyDrive, Hotmail, Messsenger, or
other Microsoft online products, you can use the same ID.