Im really glad that you liked the design, it inspires me to do more. Pixter is a full service and the iOS app is just a part of it. We have a lot of features planned, and we are just getting started. We need support from people like you!
PS: we have a free account, which allows you to follow as many people as you want. It's like a read-only mode, writes are limited to 12 photos a year :) Every sign up helps!