Well, I can't say I agree on the POS acronym, I never would have thought of using those words for POS. If a logo is done right though, you really don't even need words to describe it. Let the logo be the brand.
Anyway, not sure if that is an American thing, or it's just that there are a lot of acronyms for every little thing now.. hell I just learned what tldr meant just a couple of months ago. cli about 6 months ago. lulz about a year ago. We had terms quite a bit different in my hayday like sysop, sysadmin, 9600, haha, dos prompt, quackintosh, and screw you hippie.
@kenCode, I'm taking the time to provide this feedback because I own like 10% of OPENPOS and a boatload of BTS. I care about the success of this project, and you're about to do something that will undermine a lot of the awesome work you've been doing. Please don't do that.
POS as an acronym for "point of sale" is retail industry jargon. The general public is NOT familiar with it. Instead, the general public associates other things with POS. "Piece of shit" is at the top of the list and is nothing new. Also, the cryptro world thinks of POS as an acronym for "Proof of Stake". So you're just causing further confusion on that front, and basically missing the mark all around.
You don't have a lot of chances to get this right. So for pete's sake, please don't put your head in the sand and make the mistake of using POS for anything consumer facing. If you do, you will end up wondering why it gets no traction (or a lot less than it should).
For something consumer facing, why not come up with a name that uses the word "pay"? It's short and concise, and can't be mistaken for anything else under the sun. Check out some of the designs below. A couple of them use "Bloc" instead of "Block" since BlocPay is more unique than BlockPay and has more domains available. Please, I hope you head in a direction like this.
P.S. Even spelled out, the term "point of sale" doesn't mean much to (and won't resonate with) the general public, and doesn't look particularly good on a logo. Again, the word "pay" is the way to go for something consumer facing.