3G network availability depends on your Service network provider.
Reliance provides 3G servies in Delhi, Mumbai, Kolkata, Punjab, Himachal Pradesh, MP/Chattisgarh, Rajasthan, West Bengal, Bihar/Jharkhand, Orissa, Assam, North-East and J&K. Also they are planning to work out on partnership alliances with operators where they do not have 3G licence so that users get a seamless 3G experience when they roam.
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.
yes
I have a 3G iphone with ios 4 and it didn't work on it
yes, but you have to have swag also.
NO
Yes. if its Iphone 3G, then you should be supported by Softbank or Docomo 3G Iphone 2, dont work..
It will still work, you just wont be able to use 3G.
Yes, it will work in India. 100% but on 3G for atnt and 3G + CDMA Verizon model. Enjoy!!!
No they cannot because the 3g is more advanced than the 2g. I know because I work for apple
No.
No, it does not. Earlier Kindles worked on The Sprint Nextel 3G network and current models work on AT&T's network only.
yeah