As a consumer, the last thing I want is more plastic in my wallet. Something like Cardstar ( http://www.mycardstar.com/ ) would be a start, but maybe that's a typical early adopter HN attitude more than a typical consumer response. Your landing page needs simpler, bigger, attention-grabbing text. Also, I'll second the comment below about the big bright signup button. The CardStar link above has a nice example that yo…
Quoted because I only get one upvote.
There are several grocery store chains in my area. One of them does not have a loyalty program; they still have traditional sales. The price of certain items is reduced, and no plastic card or other identifying information is required to get the reduced price. I shop at that chain almost exclusively, in large part due to the lack of a loyalty program. It's not so much that I'm worried about privacy - I simply find them highly annoying.
Sorry, LoyaltySpace. I think your startup sucks. I don't want more stores doing this.