Sorenson Spark Codec? Flash MX!

In a Macromedia Flash MX press release they announced that Flash MX would support video. They specifically mentioned the Sorenson Spark codec. I already own the Pro version of the Sorenson QT Codec, but I've never even seen mention of this codec.

Anybody know what/where this codec is? I guessing it's packaged as part of the Flash MX release. Anybody know what it's capabilities/limitations are? I knew that video would make it to flash eventually and it looks like the Sorenson Spark Codec is the main (if not the only) format for video in Flash.

Anyone know anything about it?

I still haven't figured out if the $199 upgrade is worth it considering what I seen and heard about the livemotion2/after effects5 combo.