If the description is too long, I suspect you may be focusing too much on the how it work.

I think the initial 'what or why' is both more important, and should be shorter.

For example facebook would say 'we make it easy to be in the loop with your friends. Google would be 'we help you find the info you're looking for'.

You might be in the neighbourhood of 'we connect your virtual and physical worlds'. or something like that. Unfortnately, I don't even understand it to that level, so I can't really help. But don't get into how. If people care, they'll look deeper into how.

Check out simon sinek's "start with why" http://www.ted.com/talks/simon_sinek_how_great_leaders_inspi...