Is there a 'User manual' for Android 2.1? The user guides that came with my Android 2.1 phone are pretty basic and mostly geared to the mobile company's interface and apps. I've come across this PDF guide to Android 2.2. Is there something similar for 2.1?

Update:
Android 2.3 (Gingerbread) user manual now available here (PDF).
This Nexus One user manual seems to be basically the same document as you linked, but specific to that phone and Android 2.1. Since the Nexus One was a "pure" Android experience, the vast majority of the document should cover what you're looking for.

(That link seems dead, but this link from the Internet Archive Wayback Machine seems to be working. There's also this link from T-Mobile.)