I can see sophisticated muggers logging onto this to home in on people carrying expensive gadgetry and not concentrating on their surroundings 8O
Seriously, games like this are going to be become increasingly common. Combat, trading and advanced messaging will all be catered for shortly.
Once something like the Nintendo DS gets GPS it will be incredibly popular with kids.
I think that's what
Gizmondo are hoping to do, but I doubt they have the marketing muscle to succeed.
I can also see this helping wi-fi hotspot coverage. If loads of kids are wanting to play their GPS game, it would be worth pizza parlours etc offering free wi-fi access.
/\dam