I like the mStand too, and in the US it shows as being in-stock. I'll probably get one for the office.
It doesn't look like the mStand will do a much better job with cooling. I have th e iCurve and love it. The mStand is good for elevation but not necessarily cooling. My MBP is warmest at the back anyways so the mStand may not be so bad in the cooling regard depending on how far back the plate that the MBP is to sit on extends.