3M has a monstrous 46-inch multitouch table on display at CES 2012 that reminds us of Microsoft's Surface. The display has a 1080p resolution, and currently supports up to 20 concurrent touches — though it's theoretically capable of tracking up to 60. Similar to Microsoft's take, 3M sees the technology being put to use in retail stores, military applications, and governmental offices. The software we saw was running off a Mac Mini, with basic Twitter and photo viewing clients. The table is smart enough to ignore palm and arm input, but that shouldn't be an excuse to put your elbows on it.