It looks like MS will release SP2 in the coming days, said by Yahoo News. But there also some news saied it will delay, saied from CNET.
For me, I guess it will be released on next Tuesday.
My company have got the Copy from MS. The IT group is testing SP2 now. They found some problems, such as Cisco VPN doesn't work on SP2 and it will break some antivirus software too. At last, we were told, “please, please, please do NOT install this service pack on company's computer”