The embdSocial team has just released an Arduino adapter for their Wisp device!
The Wisp provides a ton of drop-in functionality for your Arduino:
Updating Facebook statuses
Sending/receiving SMS text messages
Manipulating files in your Dropbox
Your WISP coupled with an Arduino using an Arduino shield adapter yields a tightly integrated package that allows you to bring the internet to any embedded project. Tired of breaking out that huge USB cable every time you want to program your Arduino? If your WISP is online simply upload your compiled sketch and your WISP will take care of the rest...that's right, over-the-air updates for your Arduino project!
Pre-order now: http://www.kickstarter.com/projects/1762774051/embdsocial-wisp-embedded-social-media-gateway
Checkout our wesite: http://www.embdsocial.net