We just launched a cellular product that makes using cellular on Raspberry Pi and Arduino very easy; SparqEE CELLv1.0. http://www.kickstart...ino-pi?ref=live
The CELLv1.0 is a tiny Cellular development board that gives you Wireless Worldwide. That means internet to anything anywhere! The CELLv1.0 uses a 2G+3G chipset, which means it will use 3G primarily worldwide and only fall back to 2G if 3G is unavailable.
We look forward to hear from you. If you like our product, please back us on the Kickstarter or let others know about it. This will help us reach our funding goal so we can provide an easy and affordable cellular chipset.