No. You are actually the first to query after it since before summer afaik.
I kept my ears open that time, and learned that enterprises may have enterprise keys to install their own apps (outside marktplace), and that many interested people get their metro access (avoiding the separate developer fee), because it is in the so called "action pack" for starting companies.
Probably the new metro target will also have to support SEH, and I don't know if Metro apps are 32-bit or 64-bit.