It is working  

It is working! I put same code on my test application at yyy.appspot.com and robot is definitely working from there. Problem is that robot hosting application at http://kasyntaxy.appspot.com/ is Over Quota!!! I think that Google should disable quota limit for theirs own application :)

Not working for me as of 11/19/2009  

Anybody else still having this issue or is it just me.

Not working for me either  

I hope anyone who makes it work properly posts a solution I have the same problem and no solution soo far.

Problem with Contact, Not with Robot  

The *real* issue (at least that I am having), is that adding the contact "kasyntaxy@appspot.com" does not connect me to the actual robot. The contact avatar for it is just the default one, and it seems that adding any kind of "gobbltygoop@appspot.com" is essentially the same thing. It seems to me that anything with the appspot.com post-fix is accepted as a name and just connected to nothing, as kasyntaxy is for said users attempting to make this robot work.

Great!  

This bot works great! Do you plan to add PHP support?