It depends on which country you are in and which plan you are on, but for a two year contract (which seems to be the minimum) it's around $2000.
iPhone 3G S = iPhone 3G + Extra's
A regular iPhone 3G (not the 3G S) costs about $99, give or take some depending on where you buy it (not including tax).
Both the iPhone 3G and the iPhone 3G S support MMS with the 3.0 update.
$200 with a two year plan
no the iphone is much thicker
The iPhone 2G is much slower than the iPhone 3G.
iphone 3g s
No, the only phone with higher quality is the iPhone 3G[S], and the new iPhone that isn't out for you yet.
2g is 2nd generation 3g is 3rd generation. 3g is much faster. iPhone 3G can support WCDMA and HSDPA frequencies, but the iPhone can't.
You can get a load of accessories for the iPhone 3G S, such as headsets, and of course car chargers.
How much does an iphone 3G cost without network in the UK?
Yes