Actually if you did research you'd find apple spends much less then MS on r&d, but gets a much higher ROI then Microsoft does.
Metro UI is different, but it reminds too much of the crappy 90's web portals. Metro tries too hard to be easy to use, and appears to be a bit more convoluted.
Btw, I know you're not a UI designer, but visual cues are superior to typography.
People react quicker to visual cues.
I agree in regard to visual cues being superior than typography, but I can understand why MS has chosen this approach: it's expected that Win8 UI will be plenty of "widgetcons" or "live icons" or whatever name they have. So I think most text-only icons will be static ones opposing live ones.
Moreover, this is the death of "icon" metaphor. There aren't iconic images in its semiological meaning anymore. I don't know if it's better than icons but it's certainly innovative as it breaks an untouchable concept.