Some of the cool new features to look out for are
1. Remote Media Streaming. Remote Internet access to home-based digital media libraries from another Windows 7-based PC outside the home.
2. Windows XP Mode. Utilizing Windows Virtual PC, allows Windows 7 users to run many Windows XP productivity applications, launched right from the Windows 7 desktop.
3. Windows Touch. Controlling the computer by touching a touch-enabled screen or monitor is a core Windows 7 user experience.
Download Windows 7 RC
So what are the minimum system requirements for Windows 7?- 1GHz or faster 32-bit (x86) or 64-bit (x64) processor
- 1 GB of RAM (32-bit) / 2 GB of RAM (64-bit)
- 16 GB of available disk space (32-bit) / 20 GB (64-bit)
- DirectX 9 graphics device with Windows Display Driver Model 1.0 or higher driver
In case you are not TechNet or MSDN subscribers, but still interested in previewing Windows 7, the Windows 7 RC will be publicly available May 5 on the Microsoft Windows 7 site.
Note: Windows 7 Beta was available earlier for a limited time earlier till January 24, 2009. The Windows 7 Beta software will expire on August 1, 2009.
Update: Now the promotion is over and now you need to buy Windows 7.