You know, in all seriousness that's a really good idea. The main caveat I can think of is the sheer weight of the iPhone. But I use my iPhone in a shirt pocket and perhaps any such developer could design their app with that in mind? (Not sure what solution might work for the ladies...)
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Are there not phones out there with built in accelerometers and vibrators? Someone get on this, probably be worth $2 in the app store.
You know, in all seriousness that's a really good idea. The main caveat I can think of is the sheer weight of the iPhone. But I use my iPhone in a shirt pocket and perhaps any such developer could design their app with that in mind? (Not sure what solution might work for the ladies...)