I was just thinking that it would be cool to have a sort of “lite” version of ZBrush that could run on the PocketPC or Color Palm Pilot for sketching/tool modeling on the go. Then you could load those tools into the full-version of ZBrush when you get home. Don’t know if it could happen at the level of today’s hand-held technology though.
I was remembering that someone at ZAcademy had done a picture of ZBrush running on a hand-held. Seems to me it was Kruzr, but I’m probably wrong.