Yes I Can!

Microsoft Windows 7 Service Pack 1 Build 7601.16556 Leaked
LinkShare Referral Program

LinkShare Referral Program
this build of Windows 7 SP1 was compiled on 21st April 2010. Nothing new can be found in this leaked Windows 7 Service Pack 1 builds except bug fixes. Here are hashes of Windows 7 Build 7 Build 7601.16556.100421-1510 SP1.

BUILD: 7601.16556.100421-1510; Service Pack 1, v.172
FILE: 7601.16556.100421-1510_Update_Sp_Wave0-B1SP1.0_DVD.iso
SIZE: 1,306,019,840 Byte
CRC: 9EEC87D7
MD5: ADD8D6C1C17CAAF3C4C4B7A86BBE164A
SHA1: 0DE53C0F707FF9DD81457F7290B4A6E6E66EA089

Wzor has also posted details of Windows 7 Development process which is as follow,

4/14/2010 – Beta Release!
4/12/2010 – Beta Release to HTP RTM
4/14-6/11 – Beta Deployment and Feedback
5/10-5/21 – Win7 BTP
6/07/2010 – HTP RTW
5/17-6/11 – RC FTP
6/21/2010 – FORK RC