The debut of HP's Slate 500 begs the question as to whether or not enterprise customers and market verticals care about Tablet computers. For those of us who have followed the industry for 10 or more years this product announcement feels like a re-run of a TV show we saw 6 years ago. Pen based Tablet PC's have come and gone and nearly all of them in the days of old focused on the enterprise. Will Tablet / Slate PC's fair better this time around? What type of operating system should they run? Can they compete with the iPad? Let's explore.