Bluetooth GPS acc for bluetooth phone?

[cputrdoc]

I have some applications on my phone that require an external Bluetooth GPS (the builtin GPS isn't a true GPS, it just guesses based on the location of nearest cell phone towers). I figure I have a TomTom GPS which supports Bluetooth... it's just a matter of getting my cell phone to pick up that capability and the data stream, right??

So to rephrase, I'm looking for a way to turn my TomTom into a Bluetooth accessory for my phone. Thoughts??