I realize you've probably been asked this a gazillion times, but can you implement the IBX chunk in PCS2 at some point? I don't know what you'd need to do to generate it from PCS2, but the ability to copy an existing IBX file into the POF would be a good start, provided it wouldn't break forwards compatibility.
Er, why? The two formats store the same information but in (naturally) different formats. So putting them in the same file would be redundant.
Now in a lot of cases redundancy can be useful. But in this case, I'm worried about the POF file supplying IBX information that isn't actually correct/up-to-date.
Considering that mods are supposed to be supplying IBX files
anyway, and also considering that FSO will regenerate IBX files if it needs to, I really don't think PCS2 needs this functionality.