I have an contrarian view as to why Square seems like a company poised to grow.<p>All that customers and shopowners care about is simplicity of payment. Square has got that spot on and has pretty good market share which will only grow.<p>Only tow things can hurt them<p>1. Existing device that works as card reader. Think of iPhone that can accept payments.  
2. Some kind of government regulation.<p>I dont see that happening. Even Apple&#x27;s pay p2p thing wont be a threat simply because it probably wont accept a physical card. [Correct me if I am wrong].