I remember reading an article on Rhapsody. I was then out of touch with the Mac world for a year or two, and I later started hearing about Mac OS X. The Adobe /

I remember reading an article on Rhapsody. I was then out of touch with the Mac world for a year or two, and I later started hearing about Mac OS X. The Adobe / MS story is well-known, but how was Mac OS X different from Rhapsody? It seems that Cocoa is a rebranded Yellow Box, and Carbon is a rebranded Blue Box. What was actually different?