The Shamrock Shakes are coming! Actually in some cases they are already here. And if they’re not here yet, they’ll be there soon. McDonald’s announced today that the Shamrock Shake will be available in all of it’s 14,000 US locations starting soon. It’s already been reported at some locations and will be in all locations through March 25th for the 2012 shake season. As always, you can find the most complete information anywhere about the ShamShake at our updated Ultimate Shamrock Shake Guide, your authoritative source to all things Shamrock Shake.