Great idea; it's a bit unclear to me how to become a user (rather than advertiser), there's reference to an app but I couldn't find anything. I wouldn't mind ge

Great idea; it's a bit unclear to me how to become a user (rather than advertiser), there's reference to an app but I couldn't find anything. I wouldn't mind getting photos printed for free with ads on the back. Still in beta? I'm also curious to see what the auction prices end up being - they may start at $0.01, but I doubt you'll stay in business long printing+shipping at that price. I also wonder - if an advertiser bids for 1000 ads, are those spread among 1000 different people, or 50 people x 20 photos (or whatever)? As a user, would I upload all the photos I want printed and then sit back and wait for a bundle to come in the mail?