zalo

I understand the UX reasons against this, but export of the data to a common, easily parseable format (like .csv) would assist with the training of machine learning systems/predictive models.

Simple day-of-week correlations should be possible without much effort, but correlating the sales of item x with baseball games in the area might be a little more involved...

You've mentioned a couple times that the future is in letting the user use their mobile device to view menu/place orders.

What do you see as the lowest impact way to loading this "applet" onto the user's phone? A web address on the wall?

Would be interesting if that $35 Raspberry Pi ends up acting as the web server, serving dozens of requests simultaneously.