Rich,

 I believe (but I'm not sure) that Grand Central Dispatch as well as a Snow Leopard are technologies under NDA and can't be discussed publicly on the mailing list. I'm not in the know and can only speculate. My guess is that MacRuby will eventually take advantage of GCD but I'm afraid, we will have to wait for Sept. to know more about that.

- Matt

On Tue, Jun 9, 2009 at 5:57 AM, Rich Morin <rdm@cfcl.com> wrote:

Grand Central Dispatch is Apple's proposed technology for making
concurrent programming easier and safer.  It looks pretty cool,
as far as I can tell from the somewhat fluffy discussion here:

http://images.apple.com/macosx/technology/docs/GrandCentral_TB_brief_20090608.pdf

It's also pretty clear that any first-class development language
on Mac OS X, going forward, will have to support this.  Ruby has
all sorts of block-based goodness already and Laurent is busily
implementing JIT for MacRuby, so I speculate that GCD may well be
in MacRuby's future.

Has anyone looked into this possibility, if only to the extent of
sketching out what language extensions might be needed?

-r
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