Since you bumped the thread, I might as well throw out there that I'm a little frustrated that lately the Square app on my N7 FHD gives me a message that the device isn't fully supported, so it could not work properly. So far it always has worked properly, aside from the stupid message popping up a couple times during each transaction. There might've been a slight delay in processing funds once, but it took like 30 minutes to get the confirmation email rather than a minute or so.