Loopt offers its service to Sprint users
online.wsj.com
online.wsj.com
I'm not a fan of apps like that and would never use it but I can see why someoene else might.
I really dislike Apple right now for this very reason. Maintaining a closed policy for the iPhone is greedy in my opinion and has nothing to do with the "program stability" excuse Apple keeps giving. Lame.
2. The existing loopt software is j2me, which the iphone conspicuously doesn't support.
3. Loopt does have a website, not sure how well it works on n iphone, but since the iphone is basically acting like a small computer (no gps, has a mouse) it seems like the proper channel to the service.
I can't think of many problems that require GPS.
It's extremely valuable in all sorts of applications. Google maps + GPS would be amazingly useful and would severely damage Garmin's market. I would use it for mapping my bike paths and "geomarking" great restaurants.
I doubt others will get a chance to implement it because it would require low level access to the wireless hardware, but I really am not qualified to comment here.
I think apple probably wanted GPS but had to axe it for battery life and/or form factor (both spec's probably sitting at hard requirements from the early stages of the phone's design). So then I'd expect GPS to be on future models.