Ford's New Inflatable Seat Belt

Update: Wes Sherwood of Ford Safety PR has left answers to my questions in the first comment. Thanks Wes!

Ford unveiled a new inflatable rear seatbelt design today. (There's a neat video here.)

This looks like a pretty good idea, but I do have some questions. If any Ford safety or PR people are reading, please chime in.

• What happens if you use one of these belts to anchor an infant seat, using the belt instead of LATCH anchors? Will the expanding baloon damage the infant seat?
• Why not use these on the front, too? Seems like front passengers could benefit as well.
• Will they trigger in a minor accident? Can they be repaired, or will they be expensive to replace, like airbags?
• Will accessories such as seatbelt positioners, or fuzzy seat belt covers defeat or interfere with the balloon?