Oh and in regards to drug dealers, you'll never see them use it cuz that would lead to a paper trail if anyone was to look at the accounts!
ok so we have been using Square since before it went public, my brother-in-law was a part of the development team and we were able to snag a prototype for testing and such. (FYI it looks ALOT better then the very first prototype!) but like i said before she is using it as a standalone POS (point of sale) system, which its not necessarily meant for. it does have its drawback but the benefits outshine them. for what we do, i wish there was a button to apply discounts or be able to pay with a giftcard, but these may be implemented in the future. otherwise its great. one bonus is, is that you dont have to wait for a separate deposit for AMEX and Discover, they usually take a few extra days, and that can make it confusing on the accounting side. it is VERY easy to use, people love it and think its really cool that we use an ipad and that they are signing on it!
if anyone has questions feel free to email me (slammedcrx at gmail dot com) or PM and i can help!