Now available for the iPad mini, Sena Cases' Florence ($80) was reviewed for the full-sized iPad around the launch of the third-generation model. This smaller version is set up in essentially the same way, and has the distinction of being one of the thinnest genuine leather cases we've yet come across. With a folio-style shape, it's not a huge jump in design, but it does provide a reasonable amount of protection, and can transform into a stand. You…