Trackpad lack of fine movement and overrun ruining experience.

[gillham]

It's like position are filling a fifo queue instead to react immediately, hence there is a delay corresponding to the length of the queue.

Right, my understanding from what @jackhumbert posted regarding his updated keyboard firmware is that the keyboard controller (8051 based) is what reads from the trackpad and reports the movements to the OS.  Over simplifying it, I would say maybe the keyboard controller is buffering messages from the trackpad as you mentioned and empties that buffer when movement stops.  Rather than perhaps flushing it.

Maybe @jackhumbert can provide some insight into how the trackpad movement data is passed through and whether there is queue/buffer of some type.