As a phalanx of gaming journalists make tracks for the west coast this morning for some convention or something it's a perfect time for a little light reading.  Over at fan site The Mushroom Kingdom there's a little feature on some of the lost material hiding inside various Super Mario Bros. games ranging from test levels in Super Mario Bros. 3 to some cameos of other Nintendo stars that were cut from Mario and Luigi: Superstar Saga.  If nothing else it's a little light fluff for the morning before all news breaks loose.