Just finish download the Windows 7 x64 build 7100. I install it after burn it to DVD. I heard this version is the RC (release candidate). The public download is allow on 5 May. But there already got download links in the Internet. There are some changes and improvements in this RC version.
What new in Windows 7: Click here
** The RC will expire June 1, 2010, and the bi-hourly shutdowns will begin on March 1, 2010.