You asked, no laughing. Two current projects might fit: One is a midi solenoid-over-wind pipe organ (currently arduino), second is a physical email/gmail/snail notifier wall hanging. The second is what I bought the board for...Are you thinking of building anything else with FreeRTOS?
The demo I built is uip. A few edits of the web server got it running, have not touched the stack.is FreeRTOS using lwIP or uIP?