Even if you dont know what DXL Round-tripping is, just go here and VOTE for it.
Sorry. That was a bit abrupt. Basically. DXL round tripping allow you to export ANY bit of notes information - design or data - as an XML stream. You can then fiddle with it, and shove it back in again, opening the door to simple programmatic update of previously 'difficult' stuff such as rich text tables, forms, etc.