For problems with a tech bent, the entire POS industry that restaurants rely on is ripe for the plucking. Restaurants pay tens of thousands of dollars for truly awful software operating on antique hardware, along with support contracts and all kinds of other expensive goodies.
Then there's their ordering systems: they still make phone calls to their food vendors after looking at fax printouts.
For non-tech-related stuff: restaurateurs could use help with marketing. They could use help with financing. They could use help with staff training. They could use help with organization. They could use help with customer metrics.
Things that we take for granted when it comes to improving our customer experience -- like A/B testing for example -- are completely nonexistent in these other industries, and they make up a hell of a lot more revenue than the startup field does.
I'd really like for someone else to get to these guys before I do, because they deserve a lot better than this.
Unfortunately, we're not in much of a position to help ourselves:
http://www.quora.com/Aaron-Greenspan/In-Thirty-Days-Payments...
What's the current status of FaceCash? Can you continue operating?