[monkeygod]

Originally Posted by solarflarex

I think its just windows mobile in general. I notice the same thing if I install a bunch of cabs or not. The more calls/text messages you get seem to impact this. Maybe my mind is playing tricks on me! and i'm only using the latest builds 6.5.x. I can't speak for the stable released versions.

I agree as well...Now pretty much I set a reminder to myself to backup text and calls every other day or so and delete it or else the phone will slow down.