Ready to send Exchange Server to trash?

I’ve been testing a few options to replace Exchange+Outlook without losing funcionalities users are used to.

Until now my best solution is this one. Please let me know what do you think and what you are using.
http://ping.fm/QOMbu

Money for Nothing

Thanks to Mugabe this money is wallpaper. Campaign from TBWA agency: http://ping.fm/Jdzlj