Consumer versions of motion control gloves — primarily associated with the much-maligned Nintendo Power Glove — have never quite caught on. In theory, they're supposed to combine the fine-grained control that hand-tracking cameras can provide with the reliability of physical controllers like the Oculus Touch. In practice, they can be bulky and constricting, and it's hard to make a truly "one size fits all" option. Various companies are trying to build workable versions — like the Manus, a soft glove fitted with flex and motion sensors. Few, however, seem as potentially practical as Gest.
There's so many companies doing their own version for motion tracking at the moment that it is almost difficult to keep track of them. Full body, hands, feet, eyes (something that interests me quite a lot). It looks like the HMD big players are already looking to tie up/purchase other companies. Don't be surprise if we get another patent war though a year or so down the line.