I was hoping Microsoft wasn't going to do this with Windows 7. But looks like they still think this is a good idea.
Remember that screenshot we saw of all those different Windows 7 versions (pictured above)? Well guess what? It's worse than you could have possibly imagined.
# Windows 7 Starter (limited to three apps concurrently)
# Windows 7 Home Basic (for emerging markets)
# Windows 7 Home Premium (adds Aero, Touch, Media Center)
# Windows 7 Professional (Remote Desktop host, Mobility Center, Presentation mode)
# Windows 7 Enterprise (volume license only, boot from virtual drive, BitLocker)
# Windows 7 Ultimate (limited availability, includes everything)
Link