I think GPS enabled mobile phones wil be the "next big thing" for several reasons:
- Mobile phone makers need to add things to the phones to make us buy them. Really, cameras are getting old and boring (and who needed a phone to take a picture?!)
- GPS is becoming more mainstream (check out the sat-nav in cheaper vehicles and hand-held / pocket PC type solutions)
- Garmin (big GPS manufacturer) already makes a mobile phone / GPS combo.
- Motorolla has made the smallest GPS chipset. They also happen to be one of the worlds biggest mobile manufacturers.
- Most importantly ... GPS is complimentary to a mobile phone. The point of both of them is that you take them with you when you travel and also the GPS could tell you where the nearest XYZ is that you search for on your mobile - there could be a lot of good services built around the combo.
Ok, I'm waffling aren't I?!