Source may be right about the overall HW peak; Nintendo isn't suddenly deciding to bundle a Wiimote, nunchuk, WM+, WiiSports, and WSR for the same 199 just because. They've discerned that to maintain optimal return, that's what they need to do. I think they expect increasing pressure from the competition. Interesting that the bundle, which is almost at its release date, isn't exactly dominating the Amazon list, either (I know, the seals).
PS3 HW has not peaked, however. There's an off chance it'll sell less next year than it did this year due to pressure from the other consoles' upcoming changes/tactics, but it may be up again, and its average yearly sales over the next two years will be healthily above this past year's sales of ~13m. Yeah I'm calling it!