Hi,
i finished my latest project called rfm12trx. It is a simple RFM12 433 Mhz transceiver, which can be used to control and monitor all kinds of tinker projects. Just plug it to an USB port, fire up a terminal and start transmitting data. Hope you like it and build some great project based on this technology...
Check it out:
http://www.schoar.de/tinkering/rfm12trx/All files (eagle, mechanics, src, bom, ...) are published and available under creative commons. kiu