This is incredible news. Linux Mint Debian Edition, which is powered by Debian Testing, is essentially going to build a new repository, that will represent the latest from Testing, but also packages that have been tested and/or fixed.
This is going to take a lot of the risk out of Testing (especially toward the beginning of a development cycle, when Testing isn’t as solid as it is toward the end of the cycle).
I’m hoping to buy a new laptop by the end of the summer. Linux Mint Debian Edition (the XFCE variant, of course) is going to be my next distro. I was sold before this project, but now I’m insanely psyched.