The change is good, WPFE was a mouthful, but "Silverlight" will take some getting used to.

I'm sure this will be a big deal down at MIX in two weeks.

More from on10.net: 

Out with WPFE in with Microsoft Silverlight. This has just been announced!

So we've been hearing about WPFE for a while now but Microsoft has just officially announced Microsoft Silverlight.  A new solution for being able to take video, interactivity, animation and make it available on Mac, Windows and many browsers.