Nowadays, you can’t really claim to have a mobile OS worthy to mention unless you can produce an Angry Birds title…Well today Windows Phone 7 enters that category. Windows Phone 7 has got Angry Birds in the market place for $2.99.  So now we can shot those birds at the pigs and get our eggs! There is a trial version that gives you the first few levels free – this is really just for those who never played the addicting game and need a reason to spend $2.99. Find it here in the market place.