Agreed about the protoss 4-gate. You can easily prepare for it if scouted properly, especially for terran. zerg probably can get a bunch of spikes, lol.
I think last time they increased zealot build time in the beta, protoss had a hard time defending from early rushes.
edit: HuK won the MLG Raleigh tournament! Awesome play and series at the grand finals. He makes me want to switch to protoss.