Topic: PDA/SmartPhone and GPS

I've seen a few PDAs/Pocket PCs/SmartPhones that advertise having a built-in GPS receiver. The E-TEN G500 and HP iPAQ are two such devices.

The question now is, can I access the information that is spit out by the receiver? All of the articles that I've read so far suggest using a Bluetooth GPS receiver instead of the built-in one, but I'm not sure if it's because you can't access the built-in GPS or some other reason.

Anyone done anything like this or seen any information somewhere that might help?

Gracias,
LF