I've searched the forums but haven't seen any specific mentions to this yet. I constantly get an SMS Error Sending Message even when I have 2 bars of signal. It keeps saying "Error Sending Message". It seems like I have to have more than 2 bars to be able to send a message. And normally, I would be fine with this as long as it would queue up my message like my Blackjack would. But with the iPHone, I have to walk around until I can find a strong signal to get my message out whereas the Blackjack would just queue it up until it could get a signal. Anyone else having these issues?