I got the same thing in Chrome on OS X (however, I have all plug-ins disabled due to the current Flash vulnerability).
I can’t imagine this is anything more than an oversight that will soon enough be corrected. The copy on that page is a bit rough, too:
> Apple engineers designed the A4 chip to be a remarkably powerful yet remarkably power-efficient mobile processor. (emphasis mine)
I think the page was a rush job, somehow neglected and not up to the usual Apple marketing standard of quality.
