Rationale:

• sfx buttons would make more sense with a hidden mouse
• a couple of projects of mine :)

+1

for UIs with knobs, mouse lock is pretty essential

+1

For first person shooters this is almost a necessity

+1

As a mouse pointer that is not affected by the OS mouse coordinates

• A mouse that doesn't protrude from the screen.
• Mouse operation with inertia.

+1

Perhaps this is something in memory that could be POKE'd? I haven't found it yet though..

+1
Would be very useful for synthesiser's UI

+1
Even if Freds72 is the only person who every makes something with the feature, the whole community would benefit greatly