Is Quickbooks the only app that handles multiple "lines of business"? In quickbooks, that's called "classes" and is a great way to distinguish between locations or whatever. I find it hard to believe that other accounting packages don't do the same thing but call it something else, but I have yet to find one. Maybe it's only in super high end systems costing thousands of dollars? Is there a fundamental way other accounting systems are addressing "classes" that I'm simply missing? Quickbooks is one of few apps that keep me from being fully operational on an iPad. An accounting app on the iPad that also handles lines of business would be great.