[Matth]

It does raise a point on wireless though, Wifi saturation is pretty much inevitable, helped by the lousy channel planning.
Devices have channels 1-11 or 1-13 if they actually bother with the full UK spec.
The actual widt of the signal channel means that there are only a few really good setups with no or minimal overlap:
1, 6, 11
1, 5, 9, 13 (but 9 is centre for microwave oven interference)
1, 4, 7, 11 (4 channel compromise, 3 spacing is not entirely clear of cross channel spread)
1, 4, 7, 10, 13 (maybe the best comprose, a 3 channel spacing with 4 channels possible in 1-11, 5 in 1-13.

The situation of wireless congestion is only going to get worse, and unless there is some regulation or clear recommendation, the 2.4G band is going to end up unusable, the congestion is added to by other 2.4G devices such as video senders and 2.4G cordless devices.