WPMU DEV has had a dashboard plugin since 2009, so it’s almost five years old!
And yes, you’d be right in saying that initially it wasn’t the most popular thing we’ve ever done. OK, you wouldn’t just be right, you’d be overwhelmingly accurate.
But, bear with me, because I think you’ll find the 2014 dashboard a very, very different experience to the 2009 one. First up it no longer has annoying features like showing to clients (only shows to admins or super admins on Multisite) and non-dismissible nags (you can control everything you like now, especially dismissing them) or any of that other annoying stuff.