Yes, I am writing this post from my machine with Windows 7 RC installed directly on the hardware, no virtual machine, and it is the only systems (no vista, xp o linux on other partitions).
My machine is a Dell XPS 1330M with 2 GB of RAM. I been working for a couple of ours and I didn’t get any trouble. It seems that all devices have been recognized and are running ok. The only driver that I had to install by myself was the sound system and I used the Vista driver.

Til now I have installed and run the following software successfully:

• Mozilla FireFox 3.0.10
• Mozilla Thunderbird 2.0.0.21
• Winamp
• Sony Ericsson Wireless Manager

More news in the upcoming days.