Simple questions regarding Word docs and PDFs

[Thunderbird8]

On the iPhone;

1. Can you, from Mac Mail, open, edit, cut/copy/paste a Word document?
2. Open and Save stored Word docs from Mobileme? (or from the phone)
3. Also can you save it (said Word doc) as a PDF then email it?
4. Can you save/load it to/from your Mobileme account?

If the answer to the above 4 questions is yes I am getting an iPhone for work!

Thanks.