I'm gonna do another bump. I have a similar treadmill (or maybe the exact same one, I lost the the manual with product name). It is of the X9i series and when I saw it in the store, I had to go for it. I was a bit irritated to see that you are locked to the iFit application and you cannot return to the launcher. I need a male to male USB cable to see if I can get a bit of ADB on it.
From the (crappy) performance of it, I can tell it has about 512 MB RAM, a dated CPU clocked at around 600-800MHz, the screen looks like a crappy TFT display at 1280x700. Lastly, this thing runs Froyo. Mine features a full USB port and an Audio in port. Not much to screw around with. Downloads are disabled in the browser, and the Menu key does nothing.
I think something can be done though. The application that controls the treadmill can't crash as it is, and if it ever does FC, the motor shouldn't stop. NordicTrack doesn't have a recovery image up for some reason (thanks, NordicTrack -_-) so that's even less to work with.
Nevertheless, something can be done. It's not really a fun thing for an Android enthusiast to pick up an Android device with such dated hardware (the tredmill itself, as just tredmill is amazing).. Plus, it was $2,100 at Sears.
---------- Post added at 08:48 PM ---------- Previous post was at 08:43 PM ----------
here is a video of the Treadmill and the board;
USB and Audio in is on the right side of the console.