Les, you need to stop posting this stuff, the LX is too sexy (And it would definitely break my bank)
I was under the impression that the OM family cameras were also capable of practically unlimited exposure times, since the OTF metering technology is practically the same. On a whim, I wound up my OM-2's shutter in the middle of the night and let it run with the cap on, the shutter clapped shut after some 40 seconds, so I guess I was wrong there. Then again it's a pretty battered piece and something could be off.
(sorry if thread hijacking)
(Also, what film was that? Exposing for 40 minutes, don't problems with reciprocity failure crop up?)