What is in it, got this email the following week.  It doesn't list everything, but if they are doing everything that is in the email, that is a good thing.

·         Filter performance – you should see a 4-6x improvement in your filter performance, this is an area we would like some feedback on

·         Multi-select filters in PPS will now pass to multi-select parameters in SSRS reports

·         Negative numbers causing text wrap

·         Time Intelligence day offset issues and localization issues

·         Display conditions not working for strategy map and excel services views

·         Null actual values yielding incorrect status

·         Dashboard designer dashboard layout improvements

·         Chart/grid bug fixes

·         Strategy map improvements

·         And many more

There are almost 300 fixes that are implemented in SP1.