New software not working as seemlessly ?

Updated my Iphone to 2.0 , everything is great just a few minor points im wondering if its just me or has anyone else experienced this also.

Just general browsing through menus/contacts it seems to sometimes lock up for a few seconds before doing what you asked it to. It never happened before but its very noticible now and quite frequent.

Anybody else ?

we're all noticing the slowdown, especially in the contacts app... apple will have to address it