Here's what I've written for GPMagazine3:
As mentioned, why not use the chatboard as an extra controller for VS. matches? While more complex controls may prove difficult on the tiny buttons, a simple space shooter using 'A' for left and 'W' for right with the 'Space' button for shooting shouldn't be a problem. A two player game of Snake could also prove to be fun.
Best of all, what about using it to control the second player in an emulator such as Little John? Two player Bomberman has never been so cheap. (In both monetary terms and the fact that the NES versions suck.)
Remember 'House of the Dead'? I bet you do, but do you remember 'Typing of the Dead'? In one of the odder game spin-off's the lightgun was stipped away and replaced by, ahem, words. You had to type these in as fast as you could to kill the zombies, which led to frantic and surprisingly genuis gameplay. (The best typing tutor bar none.)
Why not combine this with a real time action game, whether FPS or shooter? Player one uses the Stick to avoid the incoming enemies while Player two types the words that come up on screen to kill them.
The games that couldn't be possible with the 'board, for example, a crossword game would be great for a long bus journey, and with the chatboard and a GP32 you could carry an almost infinitite amount.
Maybe a clone of some Gameshows such as Countdown (A very British show) or Wheel of Fortune?
Finally, what about clones of board games like Scrabble, Boggle and Trivial Pursuit?
Take GPKat, add the 'board and what do you have (Apart from a future animal cruelty record) ? GPVoice of course!
Using a simular design to the 'speech' in 'Animal Crossing' (where each letter of the alphabet is recorded, and then speeded up to read whatever you type) you could tell everyone how much you hate them with the touch of a button.
Ideal for those that think swearing at the Television has an effect on the programmes.
