Downloaded the Beta at midnight last night. Amazing. Like I expected some songs are good some songs aren't.
This is brilliant, it goes to everything, I was worried it'd be mapped to the beat. And I'm happy that only the highway is, whilst the cars/blocks go to the synths and vocals. If I can I will buy this definetely. Oh and it works PERFECT on 128 MB graphics card - something FoF doesn't do (when this is so much more complicated).
A few complaint/suggestions now:
Songs with glitchy breaks tend to not work: with long streams of one colour in a lane for quite a long time. As is expected filters (on drums) kind of throw things out of wack also.
In one (and only one) song I played the highway turned in such a way that it was flat, but the left lane was not visible, this also happened to the right lane when it mirrored it - turning the other way instead. Can't be anything to do with my resolution as it's set the same as my desktop which fits fine.
There is a good amount of corkscrews, but here's an idea (that I have already seen suggested) - loops. They'd have to be on a slant of course, but god it'd look awesome. =P
This is extremely well done. =] So er... that's about all there is to say.
EDIT: Bah! No it isn't! The most important thing to fix is support for special characters µ-Ziq appears as: "-Ziq"