Talented and brainy performer John Mayer and his girlfriend, non-talented and apparently non-brainy performer Jessica Simpson have two things in common.

One? We won't go there.

Two, they both have BlackBerrys, and like to check their messages.

Even when they are on dates together.

Have you ever been on dates when she or he checks their cell phone regularly?

Strikes me as a bit discourteous. How do you feel about it?