Aside from the now-fixed notifications issue, the only thing I've noticed is that resprings are taking longer. This is, however, my own fault--with the iPhone 4 and iPad 1, I quickly learned to not leave large themes in the Themes.xxxx folder unless they were in use. I've just been lazy about moving them out to another folder (or zipping them up & sending them to Dropbox via iFile). When I am consistent about combining individual theme elements into my personal theme so there's fewer in the list, optimizing pngs, and getting stuff I'm not using out of there, my resprings speed back up considerably.
All that stuff doesn't affect the phone when it's in use though. Battery drain seems to be nonexistent, and there's no significant lag in actual operation.
iP4s 
