Well, the issue which made me uninstall it from my N73 the last time around has again surfaced, this time, with the new conversations release and my N85.

Many times while replying via the default messaging app, when i try to send it i get a "Mess. Editor in Use" error and i am left at the message editor screen itself.

The next part i think maybe a FP2 error, since i cannot verify that it happens after installing the coversations app only.
If i save that message to the drafts and then try to open the draft, the message is all empty!