Which is the core developer team?

as the topic

up

Seems to be Qiang and Wei.

Take a look here

http://code.google.com/p/yii/

Aren't two developers too few for the developing of a framework like this?

Khaoz is right. At this moment, the Yii team consists of only Wei and me. At appropriate time, we will recruit more members. Currently, we want to keep as a small team so that the code and design can be produced in a more consistent way.

Can I just say that you guys are doing an amazing job with this frame work :) I have convinced my employer to use your framework for a big project we have going at the moment and it is a joy to work with :) (once you get up to speed with it)