Hi, I just completed my first Android application, Talking Batery.
Talking Battery lets you know by means of a voice message the percentage of energy still available in your battery, while you perform other tasks on your device. It run on Android 1.6 and up.
Talking Battery also helps people visually impaired because they don't need look at the small battery icon, they hear the amount of available battery energy.
The messages you text in are automatically converted to voice messages, that you will be able to hear when the battery level reaches a pre-established avaliable energy value.
Please, visit http://inforfilia-en.inforfilia.com/ for more information. And I would be happy to send you a demo version, just send me a message from the Inforfilia' s contact page.