Windows 7 Home site

Windows 7 Home Premium

In addition to the features of Windows 7 Starter and Windows 7 Home Basic, this edition includes:

• Aero Glass & advanced Window navigation
• Windows Touch (Multi-touch and handwriting support) Video demo, More here
• Windows Media Center
• Internet Explorer 8: Web slices, accelerators, InPrivate Browsing 

Windows 7 Professional

Contains all features in Windows 7 Home Premium and also includes these features:

• Domain Join (Step-By-Step Guide)
• Group Policy Controls (More)
• Location Aware Printing
• Encrypting File System
• Advanced Backup (First Look)
• Offline Folders (more)
• transparent caching, background sync for offline files
• Remote Desktop Host (More)
• Windows Mobility Center: Presentation Mode

Windows 7 Enterprise

In addition to the features of Windows 7 Home Premium and Windows 7 Professional, this edition includes (Some features require Windows Server 2008 R2):

• DirectAccess keeps mobile users connected on the go

• BranchCache makes file access faster (TechNet description)

• Search information on the PC, mail or SharePoint

• BitLocker protects data on a PC and portable drives

• AppLocker lets you control what user's can run

• Virtual Desktop Infrastructure made better

Other stuff

IT Pros: Windows 7 Springboard Series on TechNet

Windows 7 Features Walkthrough videos

Developer Resources for Windows 7

Windows Sensor and Location Platform (location aware, light aware, and more) PDC08 Session