Generally I'm not looking for this type of design, I'm more into a horizontal solution that's a bit web 2.5ish ;-)
However I do like what you're doing here but my eye is getting confused in the way you've linked the 30's. I'm pretty sure that we won't be going for a vertical solution but you never know.
I don't like the type on these and I can see the effort being made on the graphic device but I don't sense that it's communicating what the project is about. If we have 30under30 as text then the symbol doesn't need to be made out of 30's it can be something that tells us more about what this project is.