I just replaced my iBook G3 800mHz with the original Airport card (802.11b) and got the new 15" MacBookPro Core 2 Duo (the $2500 model). It's nice, but the WiFi reception kind of sucks compared to my iBook. Right now I'm in a location where I get great reception with the iBook, but nothing with my new MBP. What's going on? I thought I'd get way better reception with this machine because it had much more modern WiFi hardware.