I'm sure most of those 94 minutes per day are playing Angry Birds and other mobile games. I don't expect we are going to see any new billion-dollar companies being founded over the next 10 years that primarily sell mobile games. There is plenty of mobile opportunity, but the big players are already fighting over the obvious stuff. I'm not convinced mobile has significantly more profitable hidden gems than consumer web, certainly not based just on this article. I wouldn't recommend web devs change their careers anytime soon.