Just found the i415 at a sale on Target for 30$ (their regular price is $60). This is the pay-as-you-go from Nextel. Pretty much the same firmware as the i860, but without the Location API from J2ME. No camera, but you got the walk-talkie and a GPS receiver and a Java Midlet: GPS Locate that can tell in which direction you are going and how fast. You can use the same data cable of the i860. Their fanciest model the i875 also includes a Video camera, MP3 player and supports BlueTooth.