For anyone who is a fan of Stephen King or just a horror aficionado, F13 is worth a purchase. It would be great to see this original concept taken a step further and have available a Clive Barker (a Hellraiser/Pinhead screensaver!) or Dean Koontz series of utilities. My only legitimate beef is the few proofreading errors I found in "Everything's Eventual." They do cast a blemish on an otherwise polished product. Maybe we can blame these oversights on the F13 key.