You've probably heard the bands that use iPad instruments:
Yes, it's a gimmick, but it makes you think "Hmm, what else could I make this tool do?"
Because they are completely enclosed with no moving parts (so they can't be destroyed by dust) archaeologists are using them on digs and all kinds of scientists are using them in the field.
Square seems incredibly mundane, after a build-up like that! It's not in same league as inventing dancing, for sure, but it is going to be one of those small but brilliant ideas that subtly changes the way people work. "Everybody" has a cell phone or iPod or iPad now, right? Well, Square makes an elegant little block that plugs into your device. You swipe the credit card and then the customer signs with a finger.
this post about my first craft fair? Well, it's coming right up, and Square means I can take credit cards without an elaborate and expensive set up. The reader itself is free (!) and there is a charge of 2.75% per transaction. Suddenly the (extremely) small artist/businessperson has the same advantage that larger stores do - instant and secure credit card approval. It's so cute, too: I can't wait to use my new toy! (And no, I'm not getting paid to advertise it. I just love the idea.)
Just under 3 weeks left to get ready for the show .... I'm working on my booth display now. I'll post photos when I do the mock-up.