Textamerica Developer program
Textamerica, the leading photo/video moblog community, recently launched the Textamerica Developer API. They are giving $500 to the first 20 applications (with source code) which they deem to be the most useful to the Textamerica Community as a whole.
There is already a TextAmerica Java client but I did not find .NET client. It is a shame they did not use SOAP and publish a WSDL but decided to use their own call format:
Via [Darla Mack]