Well 4.3.2 fixed the 3G connection issues I had with my iPad 2.
I keep the ipad in airplane mode with wifi on at home to prevent any 3G data usage but when reenabling 3G i had to enable/disable cellular data a few times before it would let actually get a data connection even though it showed that I had a 3G connection. After going to 4.3.2 it connects as soon as I enable 3G.