Maybe its me (actually I am pretty sure it is me), but I don't understand why it is so bloody important that an app rotate? As long as the app does what I want it to do, its really not that hard at all to rotate the iPad itself rather than expect the app to rotate.
As a matter of fact, now that you mention it, while some apps look great in portrait mode, they do not translate as well in landscape mode. Some apps that do rotate probably shouldn't!
I know, at least I have a choice in which way I hold my iPad and I am not forced to hold it one way or the other. *****, *****, *****! Some people would complain if they were hanged with a new rope!
I need more coffee...