WebGL on linux

[Aljoša Mohorović]

i'm trying to get WebGL ("OpenGL ES 2.0 for the Web" -
http://www.khronos.org/webgl/) to work under linux but with no
success.
i don't mind buying a new card just to get this working, can anybody
recommend a card with excellent open-source driver?

but i'm also interested what can be expected for other cards on linux
with opengl support < 2.0?
i'm interested because it will result in linux having bad support for
webgl and mac and win excellent support.
any comments appreciated.

Aljosa Mohorovic

p.s.
my current card info:
$ lspci |grep VGA
01:00.0 VGA compatible controller: ATI Technologies Inc RV370
[Sapphire X550 Silent]

$ glxinfo |grep version
server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
OpenGL version string: 1.5 Mesa 7.7.1

$ dpkg -l|grep xorg
ii  xorg
1:7.5+5ubuntu1                                   X.Org X Window System
ii  xserver-xorg
1:7.5+5ubuntu1                                   the X.Org X server
ii  xserver-xorg-video-ati
1:6.13.0-1ubuntu5                                X.Org X server --
AMD/ATI display driver wra
ii  xserver-xorg-video-radeon
1:6.13.0-1ubuntu5                                X.Org X server --
AMD/ATI Radeon display dri