using this dirty hack http://rurandom.org/justintime/index.php?title=Cheapest_ever_433_Mhz_transceiver_for_PCs one can create a 433Mhz "Transciever" very cheap.
However, it has no logic.
It would be really nice to have an output plugin to generate Signals for e.g. Intertechno remote Sockets or other purposes just by clicking together some options.
This would give people control to their home automation without buying expensive USB-Transcievers (i dont know of any 433Mhz transcievers to work with EG and Intertechno - do you?).
There are some legal restrictions regarding radio transmitions (minimum delay between transmissions when no negotation is done) - theese could also be implented into the plugin.