Hey everyone, got another iMac sighting. Last season, when my wife started watching HGTV, the host of the show - interior dectorating view emailed photos of peoples homes and questions - used a Sony Vaio with an LCD screen that was also a Tablet. She was able to edit the photo immediately and in real time. This season she's using an iMac Flat-Panel and able to do the same thing!???!!!! HOW??? Well after finally watching tonight I noticed that the host is using a stylus (like Palms) and also some rectangular yet small white adaptor BEHIND the screen was attached. What hardware and software combonation would allow this function??? Really Curious!