1p
2z
-p cannon rushes and then goes pure probes + feed, possibly take another nexus. Chronoboost probes, build assims for the zerg allies and share control.
-both z make early enough pools to help the cannon rush, then one techs his way up to ultras while the other builds a roach warren, the $$$ from the protoss should pay for everything
It works great cuz a cannon + ling rush will always either kill an enemy or cause him to lose some economy - the problem is that usually the toss tries to tech up to warpgates and dies before he can manage it. Doing it this way, your team as a whole ends up spending practically nothing on buildings and is still able to pump out 7 roaches per inject and eventually a load of ultras.
The zerg who doesn't go roaches can choose between nonstop speedlings -> ultras or droning up a bit, I'd probably recommend lings to keep up pressure but making an additional hat and a few drones might be decent too.
Could replace one of the zergs with a terran, who doesn't need feed. Then the remaining zerg player gets all the feed from toss so he can afford pure roach -> ultra without wasting larva on drones.