I got iOS 5 the day it came out for devs and I've just started to notice over the past 2-3 days that it lags quite a lot during random times. It was working fine until now. Maps seems to lag all the time. Touching a location takes a few seconds to load it, kind of feels like my iPhone 4 is like my old iPhone 3G...
That plus the whole system just seems to hiccup every now and then. I'm going to wait for the next beta to see if it gets better. Otherwise, I'm downgrading back to 4.3 until it releases this fall.
Yea thats the same for everyone. Chill out. The next version will be much better and if we're REALLY lucky, it will come out today