Cracked.com is one of my favortie online humor sites, but is also quite informative in its own right. Then one day while reading an article, quite to my surprise, Crush the Castle was mentioned. 5 Insanely Successful Video Games that were Total Ripoffs. Take a peek, and don't be surprised, lol. Everybody knows that Crush the Castle came first, but Angry Birds drew in the masses because it appealed to the masses of children out there. joeybetz, will you sue? lol.
Well, Crush the Castle itself was inspired by Castle Clout. it even says "Inspired by Liam Bowmers Castle Clout, used with permission." Of course, you still have idiots in the Castle Clout comments saying Castle Clout is a rip off of Crush the Castle.