Interesting... I believe I have a fix for that though. I'm still trying to figure out the oddness w/ apn things - meaning adding apns and not having them save. It looks like I figured out why the default apn wasn't editable, but I've heard that editing that makes it disappear...
I will attempt to get a test fix zip together soon - one that will at least stop the ui issue with the popping colors/particle unlock effect. Would you be willing to test that and another go at messing w/ apns? No worries on the latter part, just asking.
Also -
Looks like another small update may be coming, as soon as I figure out this ATT APN editing stuff