I find myself kind of ambivalent about the 3rd party apps situation. On the one hand, I don't really need them for what I do, so I don't really miss them on a personal level. On the other hand, I see their availability (or would see it if they
were available) as a good persuader for others to buy into the Reader, which, in turn, would make the Reader more successful, and add to overall e-book progress.
Then on the third hand, I'm kinda peeved about the shutting of the door in the first place (something that seems to be looking more like it may have been done deliberately). I may not want to walk through it at the moment, but I kind of resent not being able to do so when I could before.
It's a bit discouraging, after all the company's talk (a lot of it specifically related to the Reader) about being more open. In fairness, I suppose the Reader is one of the most open devices (that isn't actually a computer) they've released in terms of using non-Sony-proprietary file types and media, but closing this door is ... disappointing.