It mentions marrying the 80 core prototype chip to 256MB memory (prototype would be marketed in some five years from now). Interesting idea to reduce latency / increase bandwidth.
The article mentions they'll use the same technique for other things. Maybe they mean cpu to cpu.
Meanwhile I still speculate that AMD works with SUN on their proximity connectivity to speed up communication between chips (Intel's technology is for in between several dies in a single chip). AMD can also use older techniques (wires) to link dies in a chip like Intel is about to use for Core 2 Quad (two Core2 dies in a single chip). Intel's new technique should have vast latency and bandwidth benefits, and might only be limited by how much dies can be fitted in a single chip. I like Intel's approach.