You're both using the word, "hot." I'm wondering if you mean that as being almost too much to hold, or just good and warm.
Every phone I've had, even my old StarTac, became warm with use. Most notably around the battery cover.
I'm thinking that these Androids get warm because of the processor's speed these days.
But, no, my Droid 3 does not get "hot," barely warm and certainly not as warm as the aforementioned StarTac did.