Pros: - they're beautiful and big, cool animations Cons: - only 6-8 tiles on the screen at one time and not all tiles are "live" - no pop up alerts or alert-tones The way I see it the Android/iOS notification center provides a more useful condensed view sorted by most-recent-first rather then random spread out like the WP7 start screen. I use the iOS notification center on my iPod Touch and one feature I really love is that fact that every time a Gmail calendar notifies I get a popup and alert tone. That is probably the single most useful way to notify the user that they need to pay attention to the phone and it's right there on the popup telling me the thing I have to do and at what time. I think if Microsoft wants to be competitive they have to add a full notification view and popup alerts. Bottom line - it's a very pretty feature with little useful function.