When we get an upgrade to 9.10 things should be improved. I run an ATI 2400 PRO and it is, of coarse not covered, but both Intel and ATI support is improved in 9.10.
There are a lot of happy folks on the testing forum using both brands. I believe that the Intel support is improved much more than the ATI support. Not having that type of chip at all, I just do not pay attention to the posts on Intel. However, there are a lot fewer posts that I can identify as being about Intel than about ATI.
