A few people on TS were interested in this in passing and wanted a little more info. This is a product that I have developed and is coming available for retail soon.
RaspiCam - Raspberry Pi powered, wifi accessible, solar powered + battery, security camera with add-ons (RFID, Door Contact, Temperature, Humidity sensor).
Features:
-Full Debian
-Wifi Accessible Web Interface(Camera operation and view image/video)
-10 Day storage FiFo for images (1 image captured every 7 seconds)
-Video capture on motion detection
-Solar Powered + Battery, place outdoors in sun light and walk away.
-Unit powered by 5.1v standard micro USB @ 1a
-Battery enough to run for 3-4 days w/o sun light
-All parts are open sourced and off-the-shelf
-Source code delivered with unit for end-user manipulation
-Price Points: $180 for indoor camera, $280 for outdoor case w/ solar+battery (still working on lowering them)