Yep, I think Angry Birds cost about 6 bucks in the app store . . .
Not too far off, $4.99. It's only 99 cents for the iPhone version, and there is a free Lite version available as well. Then there is the Seasons version that has about 40 levels at $1.99 for the iPad and 99 cents for the iPhone.
I think the price of the iPad version is worth it. The extra screen makes aiming easier, and the graphics and action are beautiful. Hopefully when there are more Android tablets on the market they will make a version for them as well.