Nice!

I have a strange fondness for counting apps on the N900 after having used the one on Ovi during a census of our photo collection at work (turns out we have over 2.6 million)..

IMO the most important feature for a counting app is some kind of feedback when the increment button is pressed -- a small haptic-type vibration and sound (ideally configurable for one/both/neither).

What would be really cool is if this feedback gradually increased in intensity as counts of 5 (or 10, or some configurable number) were reached so that it was easy to follow along with the count in one's head.

The app also needs to be able to save progress, but it looks like you're providing for that at some point.

Finally.. it needs the ability to subtract from the count as well -- useful for the odd unwanted finger-twitch here and there