@magicalclick: most of these issues seem to be app related and hopefully will be addressed via the expected updates.
I agree with some of the Mail Horrors. I hooked my tablet up to the work's Exchange server, but had to change my password today and can't for the life of me figure out how to go in and update the password on my tablet.
My main issue at the minute is the lack of Xbox Live support in the UK and the poor support for Pictures stored on my Western Digital MyBook NAS.
Other than that, I'm enjoying the new experience, but hope for frequent app updates as some of them like People and Messaging seem a little half-baked.