I managed to get my hands on a Nokia N95 and N96 yesterday and I quickly found out that they had some problem running HTML5test. It turned out that HTML5test never worked on older versions of S60 due to a bug in the S60 browser. It was simple enough to fix so I can now officially announce full support for S60 3.x. Okay not exactly earth shattering news, but it is still nice to fix these little bugs.
The score was about what I expected for four year old phones: 14 points and no bonus points.