Microsoft also made such claims. The PS2 ran out of stock at xmas time a few years after launch. Games developers are now saying there's "nothing in it" imbetween PS3 and Xbox 360. The PS3 stats look better, but the 360's true ability is not demonstrated by stats due to its multi layer chips.
I have a 360, and will get a PS3 too. However in all honesty I'm more exited about the Revolution. Nintendo forgot more about making games then Sony and Microsoft ever knew.