Check out this op about last week's "big" announcement.
Any thoughts about the announcement? Personally I really don't think it's a big deal at all. It's gonna be the exact same setup expect Intel will be richer. IBM will lose one of their most high profile clients (but I think Xbox 360 is gonna use a PowerPC, so don't cry too much for them).
It will be interesting to see how they will port all the apps over. This is actually the main point of the opinion article. All the Open Source apps I've downloaded have versions for all major OS's. This is just amazing. How are they able to develop platform independent code so efficiently? Even Linux itself is available on so many architectures. Gotta take your hat off to them.