For me personally, I don't so much mind the fact that I have to use the CF slot for, say, a WiFi card. The only really annoying thing for me is that because I'd like both bluetooth and WiFi, I'm going to have to have two CF cards and switch them as required, carrying the other one around separately etc etc.
I'd also be pretty much happy if there was one CF card which had bluetooth and WiFi in it, but I don't see that happening really...
Matt