ViaHardware has posted a preview on these up-and-coming chipsets. Here´s a clip:

A new breed of motherboard is upon us, one that is just as effective at the low end as at the high end. Intel´s 815, VIA´s PM133, and possibly ALi´s Aladdin TNT2 are soon to be locked in the proverbial gladiator pit, and only one can emerge triumphant.

Check it out