I've been playing around the development snapshot of Feisty Fawn and the new transparency stuff baked into KDE seems to be working well. I didn't have much luck with any of this stuff before Feisty, so this is a welcomed change. I don't believe any of these effects are provided by Compiz or Beryl, as much as I can tell. I've played with Beryl about 3 months ago and the effects provided by Beryl were trippy and fun...but alas it was quite unstable at that point. I would assume that Beryl would be stabilizing in the near future and that we could expect some of its graphical goodness in a future version of Ubuntu/Kubuntu. I think Suse already uses Compiz or Beryl in some fashion in their desktop product offering.
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