Well, if Barnes and Noble (or another retailer) offered DRM free ePub along with a simple easy guide on how to convert to mobi, that'd be kind of interesting. Or if they sold the ePub and offered to convert it for you and email it to your Kindle address. LOL I bet that'd get Jeff Bezos's attention.
I can't see Barnes and Noble having the ability to price cut Amazon anyway but there's been a lot of writing lately about DRM needing to go for Publishers to break outside of the hold Amazon has on the market.
It's interesting to see one of the Big 6 floating this out there.