Originally Posted by robko
1 - to bookmark you just tap in the top right corner of the page and it will "dog ear" it (looks like you bent over the corner of the page). To get back to it tap the middle bottom and you can find them under annotations.
2 - as long as you are using show on page it should get you to the proper page, but there is currently a bug in some epubs that mean it isn't going to the proper page when reopening a book. Wonder if this is related.
3 - no direct easy way to do this, but if do a search you'll find some work arounds.
4 - battery life might be slightly shorter, but should get you a good long time.
Thanks a lot robko. You've been enlightening. I hope I'll be able to make up for the annotations problem through calibre's function "fetch the annotations"