The logo is "cute". I don't like "cute". Maybe for a bakery, but doesn't do anything for me in a design site.
I don't mind the lack of capitalization. I understand the look/feel you were going for.
Drop the "Valid HTML" link. Clients do not care.
Contact page, the address floats on top of "send us an email" in IE7. As mentioned, add a form, most people expect it.
Portfolio..show a complete (4 page or so) site for an imaginary customer. In fact, several. Why show "Where we were, but decided to leave" Ion?