It would perhaps be useful if p2pool nodes were more explicit about how to find this kind of information, but I'm not sure how accessible such information is for nodes amonst themselves..
It's in there but the standard frontends don't provide much info about other nodes beyond how many of them there are.
Anyway, I guess the underlying issue is that if more miners don't jump in soon, the FairQuark repartition won't really look fair as someone obviously has a lot of hashing power :/
Some extra marketing efforts are going to be needed....