Hmm. It certainly ensures interoperability with participants who have paid the requisite 300,000 dollars.

Personally, I like the idea of being able to format my storage media in the way that I prefer. (I'm not a fan of the fact that about 10% of the capacity of every SD card is pre-allocated for DRM copy protection. See http://en.wikipedia.org/wiki/Secure_...#Card_security for more details.) I may lose interoperability with the well-heeled SDXC participants, but there are definite advantages to not following the standard...