The Google Mobile Blog announced that a new version of Google Goggles is out for Android and iPhone that has a bunch of enhancements, but more importantly can solve a Sodoku game for you faster than the best Sodoku player in the world.
First, check out this video of the Sodoku demonstration:
If that doesn't impress you, try scanning barcodes with it or print ads in some magazines.
Give it a try, it is free.
Forum discussion at Google Blogoscoped Forums.