Are you already aware of the WildFire board from Wicked Device?
This amazing board is a great Arduino compatible board, and it is ideal for long running internet projects in production.
External watchdog timer.
Accepts Arduino shields, like this motor shield.
128K of Flash. The entire example code in this tutorial only uses 19% of the RAM.
4 Additional Digital and 2 Analog pins
Network configuration via the Texas Instruments Smartconfig phone app (iOS/Android).
SD Card Slot – great for hosting website images and data logging.
More sample sketches and info here.
And of course programmable with codebender!
For a 10% discount off a new WildFire, use discount code codebender here. Shipping to the US is free.