Along with a pair of iPhone cases, Vaja's Premium Leather Sleeve ($110) recently made its way to our offices. Made to fit both the iPad 2 and the third-generation iPad, it's an extremely simple sleeve made of the company's high quality, supple leather. The front is slightly reinforced to maintain its shape and has microfiber and embossed leather on the inside to protect the tablet. Vaja advertises the sleeve as supporting iPads protected by Smart…