I Hope there more then just that in the new firmware
A few people have reported it being a very fast download and install, the UI feeling a bit better, being able to turn trophy notifications off (you still get the sound), also downloads continue if YOU put the Vita to sleep (previously they would stop and only continue if it fell asleep on its own), Near seems to be working for more people, also you can now update whenever you like rather than only every x minutes, also when something is installing you get a progress bar.
So it seems that as is always the case, what they tell you is new isn't ALL that is new/fixed. Who knows what else they've tweaked that we don't know about.