Inside the PlayStation PUGA: The DualShock That Packed a Full PS1 and Why Sony Pulled the Plug.

The PlayStation PUGA was a prototype developed by Sony that integrated a PlayStation 1 into a DualShock controller, allowing ...
Tom's Hardware on MSN

Sony crammed an entire PS1 into a DualShock controller that connects to your TV

Sony successfully built a PlayStation 1 console that fit inside a controller but had to cancel the project.
TheGamer on MSN

Steam controller prototype dating back over ten years found at Goodwill

An old pre-2015 Steam Controller prototype was just found at Goodwill, and they're still compatible to this day.

PlayStation's PSP Go was the first time Sony tried to go all-digital

17 years ago, Sony tried to go all digital with the PlayStation PSP Go. It didn't work out well for the company.

It's Looking Likely That Switch 2 Will Have A Handheld PS6 Competitor

Now, in a new Q&A session with Sony Interactive Entertainment president and CEO, Hideaki Nishino (thanks, IGN), it's sounding ...