Congrats Aqua!
Im in the same boat as Bastardman here. "Uber"units always tend to spoil things, and knowing the way people work, its likely that thousands of creatures with hundreds of tier 4 weapons stuck on will appear. The other players of Spore wont truly suffer as a result, as the game will notice the mass of tier 4 mouths and mark it as some kind of a "dominant predator" type, and each game should only really seed so many of these high-powered creatures in at any one time. What is a bit of a worry though, is that people will always turn their personal avatar species into invincible uber-critters in their own files, and when it comes time to upload their creatures, their ubercritter goes and sits next to the other millions of ubercritters. How can our games be filled out with other players content if the game also builds a balanced ecosystem / food chain / etc? Doesnt that require prey species and smaller creatures down the line? Currently it just sounds like the game will be building blood-orgies with the occasional "you got squished" message being relayed to the poor newer players. I can hear the wails of frustrated suffering already!

Im sure it will all balance out though. My true concern is how this will effect peoples creature designs. If the game will really sort out the balance issues, the only thing left for me to worry about is peoples artistic sense. Seriously. If people will be making a lot of these uber-creatures, that means my worries of meeting 50000+ species of 12-armed 12-legged 12-mouthed eat-beasts are probably true. I'd like to see variation, interesting creatures, odd designs. Not the same old ubercreature template. Still, with the game so far from release we'll have to see how it all turns out. I will personally be sacrificing functionality for appearance, at least in some of my creatures. I came for the game, but I stayed for the toys.