WINDOWS 7

A couple of days back, newly discovered screenshots (a beta build) indicated several editions of Windows 7. Following that, Microsoft announced its plans to introduce Windows 7 Stock Keeping Units (SKU) which include six Windows 7 variations.
The six Windows 7 editions would be supersets of one another. This means that even after upgrading from one version to next, they retain all features and functionality from previous versions. Read the break down with features of each Windows 7 version
Windows 7 Starter- Available worldwide to OEMs on new PCs (count netbooks as well)- Limited to run 3 simultaneous applications at a time (no Aero UI Tweaks)- Enhanced Taskbar, Jump Lists, Action Center will exist