Has anyone been successful with wall mounting a Obi200? I know I can use a strap or velcro but really want to use a mounting bracket. Is there a bracket that will work?
There is no mounting bracket available.
Just use 3M Command Strips. For example, https://www.amazon.com/Command-Picture-Hanging-12-Strips-17204-12ES/dp/B00LW1APOC (https://www.amazon.com/Command-Picture-Hanging-12-Strips-17204-12ES/dp/B00LW1APOC)
The bottom of OBi110s has those keyhole shaped slots for wall mounting. Do I infer that the OBi20x devices do not?
Correct; no keyholes. It's so small and light, that I can't see why anyone would think it necessary to wall mount it, but you know the sort of questions we get here... ::) ??? ::)
Here's a photo. The bottom is nearly covered by the barcode label, which I covered for privacy with a Post-It note of the same size.