This is one title I'm especially glad to have on HD DVD as it could be years before it makes an appearance on BD (particularly if we count from its release on HD DVD).
Why do you think of it as a "tide over"? As long as one has a working HDDVD player, there's no "tiding over" involved (it's extremely unlikely that Warner would do a new transfer or add features for BR).
Well, you know these Media Companies - they have to have the 199% ABSOLUTELY perfect marketing opportunity to release catalog titles. And only the GODS know when that will occur for "Forbidden Planet"
I have a feeling WB's will get all the titles that were released on HD-DVD released by the end of the year on BLU-RAY to finish the titles off, and catch up. If the materials are there for the release no use pushing back on making money.
But if the title didn't make as much money as they wanted/thought it would on HD DVD, then they may not rush out to release it on Blu-ray if they expect it to do similar sales - especially with the state of the economy now vs. when the HD DVD was released.
I watched the DVD yesterday (upscaled) and was amazed by how good it looked. I never saw the HD-DVD, but I imagine it was sublime to behold. I really hope this title shows up on Blu sooner rather than later.