There will be boards for both the tank style mouse and the later A1200 mouse. It's a drop in replacement for the standard PCB with no soldering required. It also has a lens cover that goes in place of the original plate used for retaining the ball.
The sensor used is the same found in high end devices and offers a resolution of 8500dpi.
Can this be ordered yet? Can't see a way to order in OWB. Where's the cart adding button?
Now it seems to work, but meh.. too expensive for me. I got interested, because I have handful of badly working original mice and would be really nice to fix/modernize them, but 40e per mouse is just too much :(