Try airshare... It uses Wifi but i spose u want bluey for other phones etc... There is another called 'Sweettooth', not sure if it still exist but i think iBluetooth maybe better??

Woohoo, my 400th post...

Back on topic, i Jailbroke my new 3GS 16GB the other day only to find out i have the newer Bootrom so each time i power cycle the phone, i need to re-run Blackra1n to make it boot, otherwise u just get the 'plug usb cable' logo... I thought i farked it until further reading about the new 'un-breakable bootrom' yeah right, it was broken b4 it weas released.. Hopefully the Blackra1n team make a fix for it...

ps. Blackra1n is by far the easiest to Jailbreak with.. No pching this at that time & pulling ur left leg etc... Just click & done in 30secs...