switching from 2g/3g based on locale?

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is there an app that can automatically switch you from 2g to 3g and vice versa based on your locale? i know there is an app called "locale" that does location based stuff but it doesnt have any settings for 2g-3g, onyl for bluetooth and wifi.


at home, i would rather just use 2g for voice and wifi for data, dont need 3g at home. but when i leave the house i dont get wifi for data so it would be better to switch to 3g when out.

thanks if there's an app or setting to do this!

Just a +1 to kick this thread and demonstrate some interest in the subject!

My network (Orange / T-Mobile in the UK) has a serious problem with some of its 3G cells —*three of the ones nearest my home have frequent data drop-outs and wildly varying signal strength to the point that calls often drop. The network have been telling me for a year that they know about it.

So, I'd like to be able to switch to 2G either at a known location, or when connected to certain known cells — or even, with a clever app, to be able to force 2G whenever 3G signal quality is varying beyond a certain threshold...