I wanted to put my experience out there on the internet in case someone else is contemplating switching service to Straight Talk with their Exhibit 4G
I called up and got my unlock code from T-Mobile in less than one day.
I ordered my AT&T SIM card from Straight Talk for unlocked phones.
Swapped out the SIM card.
I now have full 3G speeds and stable service EVERYWHERE. (T-Mobile service is lacking in Arkansas.)
$45 for and Android unlimited everything that WORKS! (No thank you, Boost)