Having read about frequency clashes around 5Ghz, the harmonization of said freqencies, 802.11h and whatnot didn't help much to clarify the issue for me. I've got the choice between Intels b/g WiFi card housed under the Centrino-brand and an american Atheros a+b/g card. I guess I won't be using the 5Ghz band much but the Atheros is said to consume less power. I assume one wouldn't be crashing planes with a low power card like this and there must be thousand of our american visitor walking all around Europe with 5Ghz WiFi cards in their laptops. But I'm still curious, is it technically legal to operate such a card in Europe?