Using a USB dongle with an iPad 2

My friend is going travelling and there's no wifi access there. Is there a way of using a dongle with a 3G iPad 2 to connect to the internet? I thought there might be some accessories that can help he.There is no USB dongle for the iPad. The i-FlashDrive has an iPad connector on one end and a USB connector on the other, but it only adds external storage to iOS device. You can use a phone as a