Beryl and Compiz to Merge
I'll be honest - I didn't see this one happening anytime soon, but alas, it is going to happen (and I suppose sooner is better than later.)
A while after Compiz and XGL's initial release as the enabler of crazy wobbly windows on Linux, some developers from the community didn't like David Reeveman's/Novell's slightly restricted (yet open source) development process that was occuring with Compiz. Personally, I thought Compiz's "I'll work on it for 9 months, not bother with releases, and end up with something amazing" development process worked pretty darn well - Before XGL, there were endless discussions about how to make OS X-like graphics a reality on Linux, none of which materialized into anything really usable. Instead of bickering about it (*cough* design by committee) for years, David decided to just do it. And he did it. And for a 0.1 release, Compiz was pretty damn good.
Can't argue with results.
However, some developers from the community who were getting involved with Compiz didn't like the way development looked like it was going to proceed, so they forked, giving us Beryl. Those developers worked on adding more crazy effects and in the short term took the focus away from stability, but within the last few months it seems like the developers efforts to stabilize Beryl have been successful. In the meantime, the Compiz team has also been plugging away and adding new features to Compiz as well.
This brings us to March 23, 2007, when QuinnStorm announced that Beryl will remerge with Compiz. It won't be easy for the teams to merge, but I think they both realize now that the long-term benefits of cooperation far outway the short-term setbacks that each team will incur.
Now that's progress.