Will Netflix Rent UMD Movies Too?

As reported on Engadget.com, the Canadian DVD-by-mail rental chain Movies For Me has vowed to rent all UMD movies made for the PSP as they are released. Seeing as their pricepoint is similar and their target audience is similar, it's logical to ask if any of the "big boys" will do it as well? Netflix, Wal-Mart, and Blockbuster all have a significant online DVD rental presence. The biggest different I see is that UMD disks are a little thicker (and perhaps more fragile?) than a DVD in a mailer.