Well Fishman FINALLY has come out with the Fishman triple play...it is a wireless MIDI guitar controller that was made by the same guy that invented the axon.....Andreas Seleazy! And...it is going to sell with a USB reciver UNDER THREE HUNDRED DOLLARS!
Here is a quick video of what it can do as shown at namm 2012...
Fishman TriplePlay Wireless MIDI Guitar Demo - Winter NAMM 2012 - YouTube
It is supposed to have 1,000 times the processing power of the axon unit, making errors in tracking a lot less than even found in the axon.
Of course, the tracking speed is exactly the same as that of the axon, that is limited by the laws of physics.
Still, a great deal for someone wanting to get into MIDI guitar for cheap.
They are going to basically make this for people who have computers, though with the right converter, you could use it live also. But later on Fishman said they are going to introduce a breakout box for live playing.