BI4.0 upgrade to BI4.1 sp1 or BI4.1 sp2

Hi,

We are currently on BI4.0 SP4, and requested to upgrade BI.

Regarding BI4.1 sp1, lots of people were talking this version is really stable, How about BI4.1 SP2?

After upgrade to BI4.1, we also intend to integrate BI platform with sharepoint 2010 and business objects mobile.

For integrating with sharepoint 2010, It just has BI4.1 sp1 ioms administration guide, BI4.1 sp2 ioms administration guide doesnot exist in https://help.sap.com/bobip.

so can  BI4.1 sp2 be integratged with sharepoint 2010 ?

how stable is SP2 compared to SP1 ?

Thanks,

Youqin