Why add another layer of fees? What utility does this provide? Why must you install, register, and have to open an app for each purchase when you can just use existing, bulletproof tech?
You assume the existing system isn't laden with corruption and unrealistic fees. What's likely happened is that Square recognizes it can undercut some other (company|companies) too cozy in their operations and steal their lunch.
Otherwise, adoption and success would fare poorly - Square don't sound like they're desperate or stupid.
