Well its creaking at the seams right now, I think given the progression of web technologies (even if they begin to use more hardware acceleration) it is going to become much slower over time as more intensive tasks are offloaded to the Hardware, its not an good indication at the moment that after a UI update its noticeably slower (at least for me) and a lot buggier.

The quote I was referencing is of course talking about the new hardware, not the old hardware you are referring to.

It just strikes me that 'never' is a long time.