Twitter has a new logo

Has anyone else noticed how restrictive their branding guidelines are? Seems really outrageous, and will definitely squash a lot of creativity that's currently out there.

You can see a quick overlay I made here http://dribbble.com/shots/592612-New-Twitter-Logo

why in the world from a brand perspective would they do this?!? They have an established logo that everyone recognizes, why change it!

The main differences that I can see is that there is a new color, the hair is removed and the the wing is sharper.

Next on the list, redesigning the fail whale

Their favicon is still the same.

at one point a company should establish a logo that lasts longer than 21 months.