Cool idea:

The Melt is a grilled cheese restaurant designed around mobile payment. Founded by Jonathan Kaplan who brought us the Flip Video Camera (now a collectors item), the Melt is getting ready to deliver a restaurant experience where users can order via device and use simple QR codes to jump through the fast lane and pick up their warm, melted goodness of a gourmand grilled cheese. Instead of just adding mobile payments as a cash register alternate on top of cash, credit, debit, chip-card or whatever, they are designing the transaction experience around the mobile user.

These restaurants are currently only in San Francisco and Silicon Valley. Read the full post: Two Different Types of Mobile Businesses, by John Bell.