Anyone for an iPhone speed sailing app? I've knocked up a quick prototype but would like to know if there's any interest before I shell out $90 for an Apple Developer subscription so I can put it on the App Store.

It isn't my intention to offer a competing product to GPSLogit, I'm aiming for something simple:

1. Easily read on the water.
2. Audio speed feedback. (chimes when accelerating or spoken, is there a preference?)
3. Ability to log sessions.