I definitely agree with jeffro-tull...
I, for one, welcome the RandR-oriented efforts. Sure, Compiz is cool and all that, but if you can't even set the resolution and/or rotate without restarting X, that's a major annoyance/obstacle to ordinary desktop users right there.
Not being able to run compiz (I can't believe someone would suggest 3D games for a VIA card) is hardly an issue in comparison.
EDIT: Can someone explain to me what the difference between open- and uni-chrome is? The openchrome wiki mentions a fork of an experimental branch in unichrome, but no details as to why it was forked or what feature difference there is, if any.
Eragon: I hate to break it to you, but there's still SiS - quite a popular chipset/IGP on TONS of cheap (not just "good-deal cheap", I mean "bottom-of-the-barrel cheap") desktops and laptops. The situation here is even worse than nVidia - you have an open 2D driver and a "quantum state" binary 3D driver which is known to exist, but no one has managed to obtain it (the person who claims to have developed it is allegedly barred from distributing it, while the SiS website tells you to go to the OEM vendor who, as expected have no clue about some Linux/X binary 3D driver for SiS graphics). Lastly, there are some 3rd party efforts to add 3D to the open driver, where the mileage varies too much to be useful.