Chromium can now create shortcuts for Chrome Web Apps
Recently, Chromium added that same functionality to Chrome Web apps. If you've got any apps installed, you can right click its icon on your new tab page and choose create shortcut. A menu like the one pictured above will appear, and you can then pin your Chrome Web app the Windows 7 taskbar or slap a shortcut on your desktop or start menu.
This is currently only available in Chromium, but expect to see Web app shortcuts make their way to the Canary and Dev builds in short order. Google is making a push to get the Chrome Web Store launched, and polished app support in Chrome will need to be in place prior to, well, whenever that happens.