If you're looking for long-standing bugs still not fixed in the beta, how about this one -- the number in a search tab that counts up is still much higher than the actual number of items. I think it's counting every separate source for an item, instead of just every distinct item. It can still rapidly rise to 40 or even 50, and when you look at the tab in excitement all you see is

**** 46 Y_O_U_R_ _S_E_A_R_C_H_.wmv 106.3Kb T1

i.e. just that f*@!ing spammer...