There are already a lot of of devices out there that use the 802.11 wireless spectrum but do not necessarily use the same channel set up.
Remember, that's the 2.4 gHz band. For instance:
http://www.spektrumrc.com/
Just because they use the same BAND doesn't mean that have to use the same format or frequencies. The spektrum system can have as many as 40 radios acting at the same time - and each radio uses 2 digital "channels" - even their 6 and 12 channel systems only use 2 digital channels.....
Heck, all we have now is 900 Mhz radio modems.
These radios from spektrumrc are used for jets, prop-planes, helicopters, and sailboats, all on the same fields with wireless networks etc etc etc. It's not an issue. It's all in the encoding. Futaba uses the same frequencies for their setup but they employ frequency hopping. Please understand - 2.4 gHz band does not need to mean noisey and dropped connections - it just happens that home networks are set up that way.