Cube is super fun. I'm glad they did it... I cast a turn 2 Eldrazi 4 games out of 6 in my last draft by playing a turn 2 Channel Every time was instant concession. I got my opponents only white source once, and then he "miracle" the Terminus the next turn and conceded because he didn't have white mana. Channel is stupid in the right deck in this format.
Heck yeah. I even got off the turn one Mox Diamond - Channel - Emrakul once. That still doesn't top the game where I topdecked Channel with a hand of Black Lotus, Tooth and Nail, Sundering Titan, Blightsteel Colossus, Emrakul.
Or the game (with a different deck) in which I cast turn three Eureka, dropping Emrakul, Blightsteel, Primeval Titan, and Woodfall Primus.