Like all of Sena Cases' offerings for the iPad 2, Florence ($80) is made from nice Napa leather; this model is a traditional folio with a few neat touches. The leather pocket that holds the tablet has well-cut holes for most of the openings and buttons, although the microphone is almost covered. Covering the bezel is a leather frame; the top portion of our review unit didn't initially lie flat, but will probably be totally fine once the leather's…