Originally Posted by graham1352
Try the key combo of the Apple Key and the up and down arrows.
That would be Apple Key and the left and right arrows to go to the beginning and end of the line. Apple Key and the up and down arrows will take you to the beginning and end of the document.
I do A LOT of text editing on Mac, Windows, and various *NIXes, and I find the Mac's text editing keyboard shortcuts to be far and away the most sensible and intuitive, although if you are willing to read help files and contort you fingers a bit, every platform/editor has the same capabilities.
One wonderful thing about Mac OS X, however, is that virtually anywhere you can edit text on the screen has the same set of shortcuts and services available.
As for the iBook keyboard specifically, the left/right arrows keys actually *are* the home/end keys when you hold down the "Fn" modifier key, so if you are logged in to a Windows machine via RDC, the keyboard shortcuts/muscle memory are actually quite similar.