A college of mine gave me a link to this cool project:
This is basically the vision I've had in my head for a long time with my own project here. Other things has kept me too busy though.
This will be a Kickstarter project later this year. May or so. I really hope it won't be expensive. However, I will probably back this on Kickstarter anyway, because it's what I want as well. Hell, it's why I'm doing this project in the first place!
This project of mine will still be ongoing. If nothing else, it will be a much less expensive alternative. With my solution, you can already use your existing treadmill or exercise bike. And besides, my PCB has other uses as well. Virtuix Omni Treadmill is much more intuitive though. Especially with Oculus Rift which is helping them out as well. Combining those two and you have a whole 360 degree virtual world. Mine is more 90 degrees. Also, Virtuix is more of a business, this is more of a hobby. At least so far.