In terms of encouraging uptake it's a shame that WPF isn't even on the
radar for the Mono guys, it'd probably be a sticking point for me if I
were to be using a *nix platform for .NET development work.

Same also for Moonlight being a whole version behind Silverlight, it's
bad for MS themselves too imo, less cross-platform uptake, meaning
Flash stays the forerunner.

Mixed news really, it'll be interesting to watch where it goes from
here :-)