Passamike~ I'm still tweaking it but all in all its working pretty well.
Just found this thread... I have had an iPad point of sale for some time now and I love it! It's the best. Takes up less room, looks cool and my employees can post awesome latte pictures on instagram when the cafe is not super busy.
I have tried and paid for several different systems. My favorite is quickly becoming ShopKeep, because you actually get a good point of sale system more than just a way to accept credit cards like Square. I have also used Breadcrumb, but would recommend that more for full kitchen restaurants.
All in all, ShopKeep.com is pretty rad because it also helps me keep track of all the employees and their shifts, so at the end of the week I just download a report that I can just send straight to my payroll manager.
Anyway, I love talking tech and coffee, so figured I would contribute to this post a bit.