I'd like to explain the simple procedure of checking in using the Facebook API on an iPhone. I'll also mention an idea that I think would do well in the App Store and that can be easily implemented using this tutorial. I have not seen this app in the store yet and I hope that one of you beats me to it.
AdWhirl on the iPad
posted by tyler
As developers, we need to squeeze as much as we can out of our hard work, so we need to fill those empty ad slots! That's where ad mediation comes in.