I like working with embedded systems and IP cameras are basically embedded systems with cameras, GPIO, and Ethernet attached. Perhaps best of all is how cheap they are on eBay.
|Gadspot||NC800||RTOS||Possibly SQ610D SoC|
|Gadspot||NC1000-L10||Yes||Same as the NC1000-W10|
|Gadspot||NC1200||Yes||Possibly the same as the NC1000|
|Vivotek||PT3117||No||PT3112 + 802.11|
|Vivotek||PZ6114||No||PZ6112 + 802.11|
|Vivotek||PT7137||Yes||PT7135 + 802.11, GPL code|