Anything is possible - I do my best to stay on top of things with trade magazines, overwhelming email lists, etc; but there are new products every day. Just search alibaba - it's amazing how many products out there are still waiting for a purpose!
To be honest, I still haven't found *the* solution, though I think I like what HAI has done, and I really like Crestron sets. I've been toying with Elve, but for me the big sell will be when I can find a device for ~$200-$250 that can have some basic functionality combined with intercom @ the tablet. It needs to be affordable enough to be the only control device in every bedroom of the house, including the kids' rooms - and be the only thing they need to control everything they have access to and be a personal information center (lighting, music, calendar, basic information, and intercom). When I can figure out how to make that happen, I'll buy 8 of them.
Midrar - your completed install looks awesome - but I never do anything that I couldn't install in a client's home or leave behind when I sell the house, and the rough edges and the outlet inside the wall just don't feel right to me. Maybe it'd be as simple as running LV to a real outlet and trimming out the hole so it looks finished even without the iPad mounted. I like the overall install though, and I bet the glass touchscreen feels pretty nice to use.