To save the file, go to the site and then on the top left hand side on the PDF menu bar, you should see a floppy disk button (beside the printer button). It's the 2nd button from the left. Click that and save as normal.

42 pages in length

Table of Contents:
Why an eBook about the iPhone?
An overview of the iPhone and Its Capabilities
Operating System
User Interface
Phone Functionality
Media Player Functionality
Internet and Connectivity
GPS and Maps
Tips and Tricks
Syncing iPhone and iPod with iTunes
Buying Applications
Free iPhone Applications
Syncing with Two iTunes Libraries
Share iPhone Applications Between Friends
Wiping Data from the iPhone
Create Ringtons
Back-up Contacts
Improve Battery Life
Use the iPhone as an External Disk
Converting video for the iPhone
Jailbreaking and Unlocking the iPhone
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