Here's an excellent treadmill app, actually two. I'm a treadmill repairman, and I wrote a couple apps telling people what to do and what NOT to do to keep your treadmill running at peak efficiency and how to diagnose it if you have a problem.
I guarantee you will learn at least one or two things you didn't know about treadmills, like how terrible it is for them to be in the garage, what other things you may or may not be doing that are good and bad for it, and what to do if that's the only place you have room for it.
The free one that tells you what to do and what NOT to do; TREADMILL TRICORDER
https://market.android.com/details?...FpX2V4ZXJlcGFpci5UVFNfRlJFRV9GSU5BTF9jb3B5Il0.
The paid one that walks you through (includes illustrations, my grandma helped me test it, it's very user friendly) more advanced maintenance, diagnosis, service and repair.
TREADMILL TESTER
https://market.android.com/details?id=appinventor.ai_exerepair.TTS_PRO_FINAL1&feature=search_result#?t=W251bGwsMSwxLDEsImFwcGludmVudG9yLmFpX2V4ZXJlcGFpci5UVFNfUFJPX0ZJTkFMMSJd
I used Google's app inventor beta to build it, and so it's designed like a truck, i.e. its focus is on getting the job done, not being especially pretty, but if you can look past that, it's got priceless info in it that it took me years to gather, and will save you hundreds of dollars and keep you working out for many years to come.
Best, Eric
Oh, yeah, and it comes with a MONEY BACK GUARANTEE. If you own a treadmill, you need this app.