If you haven't experienced "Peggle" yet, there's never been a better time. Sorry if I sound like an infomercial, but "Peggle" is an excellent game, and PopCap has temporarily lowered the price of the iPhone version to a buck. The deal ends on June 14th, so no need to frantically search for an open WiFi connection, but just keep it in mind.
The AppStore continues to play host to these sort of deals, which are great for consumers, but it's pretty clear why PopCap made the move. Since the App Store lists based on sales, a price drop will result in a purchase increase, which moves "Peggle" higher up the list, which, in turn, results in more purchases. No, no hippie dippy communism here, this is straight up capitalism. Thankfully in this case it helps all parties.
So that Mounds bar you're chomping on? Yeah, that could've been "Peggle." Get on it!