I think you guys are missing the point here. This isn't really a "multitouch-patent". Rather, it's an "iPhone-patent". The patend descibes a system with accelerometers, proximity-sensors and the like. Multitouch-interface is just a part of the patent.
Multitouch alone is probably not patentable at this point. But iPhone-technology as a whole, of which multitouch is part of, could be.