Tuff-Luv's most recent case for the third-generation iPad is Clean-Pad, available in faux leather (£40/$50) or real leather (£50/$70). If it looks like any standard folio-style case, functionally, it is, though there's one key feature that the company uses to set it apart. On the inside of the front cover you'll find a screen cleaning pad, held in place by a magnetic snap. Pull if off, and you can wipe off fingerprints and dust from the…