I recently got a HTC hero with Android - the OS is so cool and flexible - I decided to get a couple of widgets developed.
1. To display the number of sessions running on my sites. I made a php script to aggregate all the data and output a number - the widget pulls the number and shows it on my home screen - updates every 15 mins.
2. Got a adsense widget developed - pulls today's earnings and diplays it on the home screen.
I am thinking next I'll get a widget developed which will display the server status of all my servers - updated every 30 mins or an hour.