There may be some confusion here...Systema released a couple of products, the TV-boy range, which has 127 Atari 2600 games on. This was about 5 years ago.
Recently there have been products with (like you say) around 30 retro games on board - but this is based on the NES not anything Atari did. The clue is Super Mario Brothers...
But if you still want one (cuz they're still cool) you can order them online at www.firebox.com (UK based) and look in the Games section.