Ahh looks like they have a 500 THB limit with the intention of NOT turning this into a siphon to remove Bitcoin from the country to foreigners.

That actually makes a lot of sense. Guess I'll just hope this turns into something we copy over here in the US. Toasttab (a restaurant tablet POS) sure uses QR codes for payment in a lot of restaurants and the time around when those are paid sure does seem to match up with the time expectations here, given that there is always going to be more of a delay than paying the code yourself rather than waiting for someone online to do it.