Well... the iPhone 3G has been declared utterly obselete and does not have iOS 5 because of it's weak ARM 11 processor. If you still wish to buy one (as a collector's item) there is always Ebay, Amazon, and maybe even Craigslist. Why I say this would only be sane if you want it as a collector's item is because:if you want the 3G, you have AT&T; if you have AT&T, you are eligible for a FREE iPhone 3GS with 8gb. Check the website.
I know the the 3g 8GB iPhone is $499.00 to purchase it with out a contract
iPhone 3G 8gb- $99 iPhone 3GS 16gb- $200
the n95 8 gb is better than the iphone 2g but the iphone 3g is better than the n95 8gb
1000$
i 3g 1203
180$
about 10 hours
the iphone is cheaper then the ipod because you are paying a monthly fee on the phone and a one time for the touch
Apple, Bestbuy And Other Major Retail Stores Do Not Carry The Iphone 3G , they only carry Iphone 3GS , Iphone 4 , and Iphone4S. To Buy A 3G You will have to buy one off craigslist or Amazon
No, you can not upgrade your iPhone 3G memory.
8GB and 16GB models. See the related link below for a link to the iphone spec.
The only way is to buy a white coloured case.