I have about 9 GB of Songs and Videos. I am using PR1.2.

There was one specific bug fixed related to Songs stuttering while browsing. This pulseaudio related fix will be out in future updates (not necessarily the next update). But, I am not convinced it is going to fix the entire "slowing down" issue..

I had a lot of hopes for N900. I still want to install Citrix ICA client and work from my bed :-). But, I am afraid to install anything now :-(