Having just seen some commercial or other I just realized there could be such a thing as a high-latency keybard - as compared to a low-latency keyboard. If so then maybe a low-latency one could be yet another good thing to make all my coding experiences that tiny bit more wonderful.
But I am having a lot of trouble finding the research about this, as opposed to marketing! Where is some authoritive or at least useful information?
How bad is 'standard' keyboard latency? Are we talking milliseconds? Tens of milliseconds?
What are the technology limitations involved in the software/hardware protocols PS2, USB, USB 2.0, USB channels, interrupts, etc? Has nobody cared about this enough to study it and publish?