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The iCade Arcade Cabinet began as an April Fool's joke in 2010, but this golden unicorn of iPad accessories has actually made it to production, showing up at our door last week. iCade creatorThinkGeek partnered with Ion to make this former imaginary gadget a reality, and so far it appears to be a hit, backordered for weeks soon after hitting the online store in April. The $100 cabinet pairs with your iPad or iPad 2 over bluetooth, bringing familiar hardware arcade controls to the Atari's Greatest Hits app, which includes classics like  Missile Command  (free), and  Pong , which you can download from within the free Atari app for $1. The iCade is an awesome addition to your gaming collection, but it won't replace the hours of coin-dropping at your local arcade. Read on to find out why this accessory may become a permanent fixture on our desk. Ion iCade Design and Assembly With a footprint roughly as high and wide as two iPads stacked horizont...

You aren't looking at a retro microSD card reader, you're looking at an Atari-compatible serial disk drive that just  happens  to use microSD in lieu of 5.25-inch floppies. In a Zork inspired fit of nostalgia (we've all been there), hardware modder Rossum paired up an Atari connector with a LPC1114 microcontroller, capable of emulating up to eight Atari drives, managed by a custom, auto-booting app. The whole package is neatly packed in to a tiny 3D printed replica of the original Atari 810 disk drive, and is available for sale never -- but don't let that stop you: Rossum's schematics are free for the taking. The word's biggest little Atari drive is just a DIY away. Rossum

You still can't play them with an iCade cabinet just yet -- though that's coming, in June -- but Atari has now delivered quite a present to iPhone, iPad and iPod touch owners. The company has just released its Greatest Hits collection for iOS devices, which includes 18 classic arcade games and 82 Atari 2600 games -- those available either in 25 separate packs for $0.99 apiece, or in one massive time sink bundle for $14.99 (Pong comes free with the app itself). As you can see, you'll also get things like the original box art and arcade cabinets for each game, and some of the titles will even let you play head-to-head with a friend over Bluetooth. Ready to get started? You know where to find it. Ars Technica iTunes