My Iphone 3G is currently running on 4.2.1 however, Itunes is saying that there is an update availble for it. I was under the impression that there was nothing beyond 4.2.1 for 3G.
The most current iOS for the 3G is 4.2.1, however a carrier update is something completely different. This isn't something from Apple, it is an update from the carrier. They generally contain tweaks for carrier settings, APN, etc.
The most current iOS for the 3G is 4.2.1, however a carrier update is something completely different. This isn't something from Apple, it is an update from the carrier. They generally contain tweaks for carrier settings, APN, etc.