Death is a certainty and as inescapable as the people who will prey on your grief. The new Pocket Cemetery App on iTunes lets you create virtual tombstones for "dead relatives, friends, pets, or celebrities" that you can decorate with bitmapped flower images. You can even use the on-screen QWERTY to tap out and "send" a little prayer. As Wayne Perry describes it, Pocket Cemetery is "like having a little virtual heaven in t