Wonder why no one has thought of this.
But there must be a way to create a FUNCTION key on the A600 to turn the normal numbers into a NUMERIC keypad just like on a Laptop, along with some software to let you choose which key you want to use as the FUNTION key (perhaps the most useless key or a key combination)
If its a hardware hack, it should allow it to work in games such as F/A 18 Simulator to change the airial views.
get to hacking! :-)