At the time of writing...
UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
The iPhone 3G is available in Black 8GB on Pay&Go for O2, Orange and Vodafone for around £350.
UNITED STATES OF AMERICA
As far as I know you can only get it on Pay Monthly with AT&T.
My advice for UK get O2.
US wait until Verizon or Sprint do iPhone!
somewhere
Nope (I quite didn't get what you meant.)
Sorry but no, if your on PAY AS YOU GO there is no way you can upgrade. Only the plan users may upgrade.
There is a small chance you have no enabled 3G. To do this follow these steps. Go to Settings > General > Network and Enable 3G should be set to on. Also your area may not have 3G capabilities. In this case there is no 3G signal for 3G to work. To check 3G coverage contact your provider. Also if your iPhone is a 1st Generation and not the iPhone 3G you do not have 3G capabilities.
Yess you can ( but not through the itunes updates). if you are available for an upgrade, just go to the store and you can get the 16GB iPhone for $199, or the 32GB for $299. IF you are NOT available for an upgrade, each is $100 more expensive (16GB-$299 and 32GB-$399). Hope that helped! :)well i dont think you can becuz the iPhone 3G and iPhone 3GS are not the same thing. Most of the time the upgrades are free.. so yeh u cant upgrade a iPHone 3G to iPhone 3GS cuz they are both different phones.
It is the 4th model of iPhone. But iPhone generations do not go from one up: 1. iPhone 2. iPhone 3G (because of 3G connection) 3. iPhone 3GS 4. iPhone 4. 5. iPhone 4S
That would depend on several things. Did you want to buy it new, second hand, rent it or use it on pay as you go.
For an official Apple iPhone tutorial, go to: http://www.apple.com/iphone/guidedtour/tour/large.html
To get more information about the iPhone 3g you have two options, either go to a radio shack and ask an employee, or go online to their website and look at information about it.
go to itunes...plug in your deviceopen up itunesand check for updates
yes and no if you want it at all times then yes but if you can deal with waiting to go to pinera bread dunkin donuts Starbucks or mcdonalds then no
go on apple.com and look at all the goodies