^ Paid upgrade and a new & faster iPhone probably!
Yes.it is available.
*www.iclarified.com/entry/index.php?enid=1880
I guess its only for 2G
I think I read about a 19$ cost for upgrading 1.0 version iPhones to 2.0.. Enabling installation of 3rd party apps from the App Store.Tanmay Satpathy said:Same happened when OS 1.0 upgraded to OS 2.0