[kwikbreaks]

Best to assume that most people won't touch their wireless settings at all and use whatever the default comes as. This is very obvious if you try something like the Android "wardrive" app on your phone and leave it running when you take a walk - probably more default SSIDs than custom and with many Belkin routers the same security too - none at all.

From the strength of some WiFi signals I see I think others absolutely must be using the high power amps you can get on eBay. In addition to my normal WiFi I have a little Fonera+ running on an external antenna to produce a good signal in my garden and a public FON hotspot which gives me free access to the FON network. Despite that antenna being on my outside wall and indoors beating the Superhub in some rooms there are a couple of external SSIDs that compete with it in some rooms. One day when I'm bored I'll track down whose they are.