Format painter ! I wish for that daily. Stylesheets, maybe , but format painter at the very least.
I don't mind the group pane view. At least when you click on a group you can be confident you're on the right one. Sometimes when you have nested groups its really hard to find the grouping cell so you can get to its properties. I'm sure this idea comes straight from Crystal's 'group expert'. Another thing you can do is go to the advanced mode in the group pane and set the properties of those other cells. That might actually be the answer your problem with repeating headers / scrolling headers.
VS2010, I'm sure that will come later with Denali, doesn't bother me.
At least with the 2008 R2 BIDS you can target the deploy to a 2008 server.
The most annoying bug is using parameters in queries, where if you change them too much it breaks:
" the expression that references the parameter "param" does not exist in the parameters collection. "
Seems to only happen to me with MDX. Whatever you do, don't rename your parameters or try and add new ones after you depart from visual query mode.
Fair enough that you lose your query if you try and go from text mode back to visual mode, but the text mode parameter editor just doesn't ever seem to add parameters to the 'collection' whatever that is. Maybe I'm doin it wrong.