Yes and no.
For the average user, this will mean something in a few years, once this technology is in the average home PC. Chip makers are having a hard time finding ways to cram more processor power onto a chip, so they're taking an old idea and adding it to new chips. Intel is just a bit behind in this, since multi-core chips have been around for a while in other areas like Unix/Alpha. There just wasn't enough market pressure to force changes to the hardware, Operating System and Software developers in the Windows/Intel arena to look into the technology.
So, compare this to the 64-bit CPU issue. Intel introduced a 64 bit chipset years ago, but it sucked and nobody supported it, so it dropped off. Then as the market pressure mounted, Microsoft introduced a lot more support for 64-bit processing and AMD and Intel were back on the horse. Did you care? Probably not. Did you even notice?
I had the option to buy a 64-bit CPU recently, but didn't bother because the added speed didn't cover the added cost. For heavy-duty processing it's worth the cost, but for the home user its not. I'll probably have the option to buy a Pentium-8 Multi-Core CPU in a few years, and I'll likely opt for the lower speed, lower cost option.