Have you seen any other fixes (or new bugs) with SP1?
No other bugs fixed/introduced that I'm aware of. If you'd like me to check for a particular bug, let me know.
I am tempted to say that iView on SP1 seems more responsive -- although that's a subjective judgment and I haven't tested it with a stopwatch. But ever since I switched to Vista, the catalog seemed sluggish in a lot of ways. That seems
to have improved with SP1. (Cognitive dissonance? Stockholm Syndrome?
In fact, I just opened my original 1.3 GB catalog. It had been so sluggish (and I was worried I might reach some size limit where it would break) that I split it into smaller catalogs. That original catalog no longer seems sluggish to me. In fact, now I'm kind of annoyed that I spent so much time splitting it, because in terms of workflow I prefer a single catalog. Of course, hard to say what other gremlins might have been at work. I'm not too inclined to uninstall SP1 and see if it goes bad again. (But I am curious.)