If you are interested in Excel Services and are going to be in TechEd, please feel free to drop by and chat about it - I will be in the conference from Tuesday to Friday, and I do so like hearing myself talk, so do come and chat about it. ;)
I will be giving a talk about how to utilize Excel Services in your application as well as demoing something in the Bill Baker keynote.
Boston and Amsterdam are probably my two most favorite cities in the world. While I have been to Amsterdam around ten times already in vacations and business travel, I have only visited Boston once. Hopefuly I will be able to walk around it a bit and reaquaint myself with it.