OK, this TIFF thing is driving me a little crazy. They fixed Lightroom so that it saves TIFFs now with an interleaved pixel order but.....
Scenario:
From Lightroom I export to TIFF and "open after export" in CS3. Edit the image and save the edit from CS3 as a TIFF (with or without filename change).
Results:
Lightroom exports the TIFF to disk with interleaved pixel order just fine.
CS3 save the file as a TIFF in per channel pixel order without asking.
What is going on?