the next stage is mobile computing. your smartphone will become a seamless integration with your home desktop and cloud SaaS products (your desktop will be part of the cloud as well, hell maybe even your mobile will have shared storage and be serving data). Live video telecommunications will become the norm. everyone will be a videoblogger. everyone will live with the internet at their fingertips 24/7. it's scary isn…
I'd wager that everything old will be new again on mobile devices. How many of those are business opportunities for small new companies? I dunno. YouTube has been very effective on mobile, so user-created video content is probably not one of those opportunities.