The Gadget Graveyard of 2011

As you shop for holiday gifts this month, take a moment to remember the many products that aren't on store shelves this season. For every Apple(AAPL) iPad or Amazon(AMZN) Kindle Fire you buy, there's another tablet that failed to catch on and was forced into retirement. For every Wii or Xbox you look at, there's a gaming system that never made it to the production line. Sure, you might not have bought these products even if they were still for sale, but to some die-hard fans and the people