I got an iPad yesterday. One of the first things I did? Added Lightroom Help as a web clip to my Home screen:
- Open Safari on your iPad and navigate to Using Adobe Photoshop Lightroom 3.
- Tap theĀ
icon and choose Add To Home Screen. - While you’re at it, repeat steps 1 and 2 for the Lightroom Help and Support page.
Now you have Adobe documentation and links to dozens of useful tutorials a tap away. Having Help or a tutorial open on an iPad while you work in Lightroom on your computer: Not Flashy. Just fun and functional.

You could also download the PDF on your computer, put it into Dropbox and from there open it in iBooks!
It is also possible to add the PDF on Pages.
Maybe one day will we see a port of the community help application?
Did I say Pages? I meant in iBook’s PDF library!