Physx T3D licensing free?

#1 I don't know about the price,but reading the license file there is no metion of free usage,except for a non-commercial (educational) purpose.
I know there is a known exeption for the Playstation games,because Sony paid a lot of money to Nvidia for a free usage.

Actually i would prefer to see Bullet integrated to T3D,instead using Physx.

#2 I remember mentioning BULLET to Brett and some of the GG team, in IRC, when they asked what Physics package should go into T3D.

I assume they did not take that suggestion seriously because I think they already had a working integration of PhysX in TGEA/TGE but did not want to divulge that information. They wanted to 'hype' rather than really talk about it. Otherwise, I see no point in not selecting BULLET as it is nearly the best (& with the fewest strings attached) physics lib around. Currently #3 most used in industry.

I am not sure what Nvidia is doing with PhysX, I assume something big because they are being secretive and patronizing in their forums.

We'll see.

#3 PhysX also disables GPGPU acceleration when it detects ATI cards. Even if you have a GeForce of some sort.

#4 Free:

* Commercial & non-commercial use on PC
-> Must keep registration information currect
-> Must agree to the EULA at the time of download (pops up, but is copied below)
-> Available for Windows & Linux (soon)
-> No PhysX HW support requirement
* PS3 platform (through Sony pre-purchase)
* All platforms through some of our middleware partnerships, such as UE3, Gamebryo 2.2, and others

http://supportcenteronline.com/ics/support/default.asp?deptID=1949

#5 No Mac support. No sale! Bullet is the winner, in my opinion :)

#6 PhysX gpu acceleration requires cuda which requires a DX10 card.

As for the OSX support: Guess thats comming but will require some rewired physx to remove ppu support and get rid of the virtual driver for that purpose that clutters the windows usage.

#7 So Bullet will work "Equally" on both ATI and NVIDIA cards right?
I am using Bullet with my GMK implementation, but I have not tested the physics on all card types yet.

#8 I don't think that Bullet is using GPUs at all, its multithread cpu bound but I might naturally be wrong there.

#9 You are correct, Marc. The core of Bullet does not use GPU stuff (this is not necessarily a bad thing imho).

#10 if i get bullet in there? will i have to write my own object classes? (probably a stupid question)

EDIT: Yes, a very stupid question.