They're going to do something about the problem with cover images (lack thereof, too small, etc). But I'm eager to see this app because the ReadMill developers believe flat is the new black. Their app won't have the same faux 3d buttons you see on everything. Now that I want to see.
“I say that flat is the new black; that 2D is the new avant-garde; that a surface doesn’t have to be ashamed of being a surface” — Steve Pole
Let me give an example of why ReadMill has me intrigued. Think about iBooks, and how it adds a screen layout that looks like a fake paper book ( fake crease in landscape mode, the fake page curl, fake page edges, and so on). A lot of apps are aping iBooks, but the ReadMill developers have indicated that they might be going the other way (details are still scarce). It's contrary to the current trend of pretending the screen isn't a 2D surface.
It's a little thing, but it's different.