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Google is discontinuing the Chromecast line
(www.theverge.com)
This is a most excellent place for technology news and articles.
My wife is used to FLauncher and will probably get annoyed if I change the Shield's interface (again...) but maybe I'll try it out on the Google TV Chromecast I have for holiday trips.
I'm in the same boat, so when I changed to Projectivity I made it look pretty much the same. It's now just so much easier to manage.