The price will pop your eyes, but Vaja's Leather Agenda for Apple iPad ($280) is designed in typical Vaja fashion to impress fans of luxury leather products -- and in some ways, it does. Once again, you get the choice of two colors -- one for the bulk of the exterior, the other for the interior and a matching front stripe -- plus high-end leathers that are used to form a folio-style iPad holder with a front flap. Floater leather is used for the outside,…