Looks like I picked a good time to finally get an iPhone. PopCap Games - developers of many addictive games like Peggle and Bookworm - are having an App Store sale.
From now until January 3, you can get Bookworm, Peggle and Chuzzle for $2.49 each. Bejeweled 2, sadly, is excluded from this deal so you still have to pay $3.99 for it. Check PopCap's Facebook page for updates on the deal.
What would be completely awesome is if Plants vs. Zombies hits the App Store as part of the sale before the fourth. That's unlikely, though, considering that release dates are largely controlled by Apple's submissions process and PopCap is leaning toward a late January release.
Ah well. Still a good time to own an iPhone anyway what with The Simpsons Arcade out.