also check out new advances in 3D mapping technologies by C3 Technologies. They were just recently purchased by Apple, so look for big improvements on iPhone mapping to come. we're really catching up with sci-fi, walking your avatar through the online LHBS and buying products probably is not far off. smelling the hops may be a bit farther out, but certainly conceivable. though aroma is pretty damn complex. meeting each other in a virtual pub and talking/seeing each other isn't that far off. tasting the beer? may take longer.