[geneg1]

I can sporadically reproduce this in TextEdit as well, although I can't seem to find the pattern. Some (blank) RTF documents open fine, others hang just like OmniGraffle, but only the FIRST time I try to open them. If I then quit TextEdit and run the script again they open fine. Very strange.

I can't reproduce the problem at all in Pages.

It very well could be an AppleScript bug in Lion, but does that mean there is no way currently to open a document in OmniGraffle using AppleScript? That would kill a number of important workflows for me. Any sort of workaround, even a crazy hacky one, would be appreciated.