1. Playing Sudoku. We want to give players a better Sudoku experience. Simple things like tactile sounds and highlighting the current row, column and square make people happy. (The aesthetic still has a long way to go though.)

2. Showing off. People mostly use our application to amaze their friends. That's why we show as-it-happens images of the vision algorithms. We're still finding ways to make it cooler. Any suggestions would be much appreciated :)

We actually got this working in J2ME back in 2005. We were negotiating a distribution deal with a handset manufacturer, but the discussion slowly went nowhere. They wanted it on a wider range of handsets than was feasible, as camera access on various handsets was significantly broken. For example, checkout http://www.scribd.com/doc/17740520/Samsung-Z-Series-Handsets...

- In the Z140, asking for a 640x480 image gave you a 320x240 image, squashed and repeated twice.

- In the Z540V, asking for a 320x240 image gave you an image which was green and skewed!

Thank god for platform homogeneity.