Timeroid
Timeroid is an intervallometer application for Android smartphones.
It has a self timer that alerts you after a repeated delay, e.g. five times every ten seconds.
Timeroid is also able to control the camera of the phone. This is especially usefull when one wants to take picture without holding the phone, or without access to the snapshot button.
Timeroid is worth 1€ and can be downloaded only from the Android market at: