I would like to use my NXTL 7510 for (voice and chirp only, no data, no email) on Boost
I've read that the 7520 does work, but haven't seen anything about the older 7510 blackberry.
Anybody know if 7510 will work with boost?

i dont know if it will work. you can try you will probley need a 32k sim from boost . a 64k may work idk.

Might require an unlocked BB? Not sure if anyone unlocks iDEN BlackBerry's?

I have a BB 7520 with a boost 64k sim and it works fine

thanks all for your help.

Update:
I just got a cheap boost phone and had it activated, then pulled the sim and now it's in the bb 7510.So far, so good for voice and direct connect.

ps; I also bought the 20-cents-a-day internet program just in case the 7510 keeps trying to get data.
I'll let you know in a couple of weeks how it all works out.

Yes, it will work. You have to have boost phones unlocked for them to work with nextel.