I've got a Motorola Backflip (Android OS) phone and was looking around to see if there were some cool apps for my truck. I was hoping for something that would possibly actually hook up to the truck and record things like gas mileage or give readouts from the PCM. Now this sort of thing is not impossible by any means, and I can't wait for an app author to get ballsy enough to give it a go... perhaps a OBDII to USB converter .. anyhow. I found one app that is decent and figured i'd share it with you guys.

aCar is the ultimate tool for your Android supported device to effectively track the maintenance, fuel mileage and expenses of your vehicles. Whether you want to track the fuel mileage or the expenses of your vehicle, or to simply know if your vehicle operates at its peak, or just want a reminder for maintenance services of your vehicle (be it changing engine oil, air filter, oil filter, or inspection, wheel alignment, etc), aCar is the right tool for you.
http://www.androidfreeware.net/download-acar.html

It wasn't exactly what I was aiming for.. but if you don't mind filling out stuff manually its pretty nifty. You can change scheduled maintenance reminders for just about anything. It allows you to change the intervals based on number of miles AND/OR number of months. It does ask you for the Odometer reading for when you do fill-ups, you can add when you changed oil/fuel/air filters and a list of things I'd probably never really do... like a chasis inspection. If you've got an Android phone, i'd suggest trying it out, its free.

Anyone else have useful apps for their Android they'd like to share?