It's a great example of both an obvious solution and technological overkill: iPhone app developer DLP Mobile's forthcoming Mirror App will use the iPhone 4's front-facing camera to show you your own face. A DLP exec promises the app will provide a "crystal-clear high-definition vanity mirror," and while the iPhone 4's flash is on the other side, in-app light filters will enable the user to apply makeup even if the lighting ain't great.
DLP's marketers will presumably bypass the lucrative professional clown market and instead pursue cosmetics-wearing women.
It's too bad this app, and the iPhone 4, wasn't ready earlier; we Americans could use it to paint the Stars 'N Stripes on our face while we continue losing the World Cup.
[Note: Just as I was about to hit the "post" button on this entry, Landon Donovan blasted the literally uplifting goal that caused Slovenian goalie Handanovic to flinch rather than block. With the U.S. team closing the gap, there's egg on my face. Which I could see if I had this app.]