I have a fairly simple application (I guess I could put it at OpenNTF also to see if people are interested) for tracking services performed on your vehicles. It's a really simple app that I wanted to port for use on my BlackBerry web browser. What better to do than create service records while you're waiting on your vehicle to be repaired? Below are some screen grabs from my BlackBerry 8700c. It looks pretty much the same on the web as well as in Notes. The main view will give you collapsed categories for the vehicles with the date, service, mileage (in Notes), and cost displayed. Basically the information available to track is all on the form (Image 2). There is a separate form for the vehicle record as well.
If there is any interest I can post up a template.
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