I don't usually get on the internet while I'm on rides (at least not until my iPhone4 comes in the mail soon).
I've gotten acclaimated to the TX heat pretty well this summer. I go on long rides in the middle of the day. At first it was rough, but now I just sort of sink my teeth into it and feel the sweat stinging me in the eyes. It feels good in a weird kinda way once you get over the fact that you're gonna be raining sweat.