I'm sorry if I'm the only one who thinks this, but I think the "alert bar" (or whatever it's called - the orange bar that has badge notifications, etc.) on the top of the website is really annoying, because it moves the content of the page up/down. I would much rather see a lower-corner alert (a good example of this is on http://thesixtyone.com)
I realize this is a preference thing, but just wanted to throw it out there to see if others agreed.