I could swear their was an application that would turn off the BlackBerry Radio for 5/10 minutes if it did not have a signal, then after the 5/10 minutes it would try and get a signal if it did not find a signal then it would turn off the radio again and repeat the process.
I haven't been able to find it again, but it does exists somewhere right?
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8830 -> 8330 -> 9550 -> 9650
Just think about how far BlackBerries have come from then till now... And what else is coming.