Should I finalize my import?

[glorify]

Maybe I am misunderstanding this step, but I seem to understand that finalizing an import of data ends the import and not finalizing leaves it open to add more later.

So am I correct that if I don't finalize an import from IPB, then later there is an official gallery addon that could import photos from my IPB install, I could import them if the importer was updated as well?

(Sorry my mush mouth is making it unclear)