Things are really getting interesting over at Ubuntu these days, I'm getting the idea that they want to be known as the "bleeding edge" distro
At this rate all Fedora needs to do is have a LTS model and they'll become the stable distro of choice
Personally I think Mark is trying to carve a niche for Ubuntu in the tablet market, I was involved in a Naturally Speaking project some years back and can see where he might be going with this. ATM I'm not aware of any viable speech recognition projects in Linux Open Source so I assume the Ubuntu team have something special up their sleeve - possibly not Open Source.
Anyway, to paraphrase the Chinese, it seems we are living in interesting times - and I'm loving it