It's a nice start. To really take advantage of the iPad, though, will require a lot more thought as to how the UI scales up. What about that list page? It's not

It's a nice start. To really take advantage of the iPad, though, will require a lot more thought as to how the UI scales up. What about that list page? It's not necessary (or necessarily advisable) to mimic the Delicious Library / iBooks "shelf," but could the covers be scaled up relative to the type? Maybe the list becomes two across instead of one with all that white space on the right? The field here is incredibly ripe for experimentation. The winners in this market will be the ones who don't settle for a quick solution.