With Swivel Stand ($40), Targus has continued its line of slightly unusual iPad and iPad 2 stands. This one combines a case with a stand, looking somewhat like a very thick plastic folio. The tablet slips into the right side -- some covers will fit inside, as there's a fair amount of room -- and you can then position the tablet in one of four slots on the inside of the left cover. What makes Swivel Stand unique is that when it's in this stand mode,…