We have posted about indicative proofs of Microsoft doing internal Windows 7 SP1 testing and now to further support the unconfirmed news bloggers at ZDNet are now reporting that they have received several reports supporting claims of undergoing Windows 7 SP1 testing and have seen lists of post-RTM build numbers for Windows 7.

Apart from the usual cumulative security patches and fixes the first Windows 7 Service Pack is expected to have various enhancements and feature additions like support for USB 3.0 and other new technologies, everybody is eager to get their hands on Windows 7 SP1 download and we will be following this sharply and make sure that you are kept informed.