We've seen projectors used in multi-touch applications before -- most notably in Microsoft's Surface -- but researchers at National Taiwan University have extended the concept by using two projectors at once. The i-m-Top system allows high-resolution overlays to appear over the main display, which can cover a 47-inch by 31-inch surface. NTU says that as soon as it lands a production partner, the $3000 system will be ready for market within six months, with costs expected to fall dramatically after that. Here's hoping -- we just watched Minority Report again the other night and we can't wait to have a Big-Ass Table of our own.[Via TG Daily