By John Gruber
The Square Small Business Hackathon — Hack to help small businesses adapt, recover, and innovate.
iPhone Sudoku Grab is a 99-cent iPhone app that lets you snap a photo of a printed Sudoku puzzle, then lets you play it or just shows you the solution. Developer Chris Greening explains how it works. (Via Andy Baio.)
★ Wednesday, 12 August 2009
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