[tlrobinson]

First impressions:

1. $499 is a lot. A lot of people who would be willing to pay that probably already have backup cameras built into their cars.

2. I'd rather have a fixed screen that's 100% always there and ready. Sometimes I just want to hop in my car and not have to worry about pulling my phone out. The magnetic mount looks nice though.

3. ODB port may already be consumed by another gadget (e.x. Automatic). Could you use a low-power accelerometer/gyro to detect backups instead?