Chronological Order of PS3 Prototype Controllers

Does anyone know how many prototype controllers there were for PS3?

I know there's the bulky Dualshock2-esque one seen here (http://assemblergames.com/l/threads/another-prototype-of-playstation-3-controller.42408/)

There's also the CEBH-1010 which looks closer to a retail SIAXIS.

Does anyone have a list?

 

I think Pixelbutts made a pretty thorough thread regarding these controllers.

Yup, here it is:
http://assemblergames.com/l/threads/ps3-beta-2-controller.60082/#post-862399

 

Thank you.