The next service pack for SCCM 2007 will be much smaller , but still has all the important stuff. First of all there will be the support for Windows 7 and Windows 2008 R2. There will be also an Update to Management Pack for 64-bit OS’s – SP2 that will ship 64-bit perf counters. Also remote control functions are added in for x64 XP and Sever 2003 x 64. We will finally have multi-select and a multi driver delete drivers function from the console. There will be better feedback on AD extension success...(read more)

Read the complete post at http://scug.be/blogs/sccm/archive/2009/04/30/sccm-2007-sp2-what-is-new.aspx