The much anticipated and long-delayed RS Service Pack 2 is here! Download it from from the Microsoft Download Center: http://www.microsoft.com/downloads/details.aspx?FamilyId=502C0D89-1308-4662-8F58-CEC55EF1235B&displaylang=en. The list of changes and bug fixes can be found here. The SP 2 is cummulative and it includes the SP1 changes. Therefore, you don't need to apply SP1 before installing SP2.
Join me to give credit to the RS team for their heroic effort. For little more than a year they managed to release two service packs (with numerious enhancements), merge the RS 2000 codebase into Yukon, implement the new Yukon feature set, and meanwhile address hundreds of questions on the RS newsgroup (which by the way is one of the most active discussion lists). I personally know of a few “enterprise” shops that couldn't complete the design phase for this period of time. Well done for a team of about 30 people!