[sirmaru]

My Sony PRS 900 does use page numbers equivalent to the page numbers in the printed book. Font sizes do not alter the page numbers but do alter the size of that printed page from one screen to many screens.

Thus, the OP should buy that one instead of a Kindle WiFi LG 3.

For me locations are just fine. They are EXACTY like page numbers and with notes, highlights and bookmarks there is plenty of control

In the Sony PRS 900 too many highlights and / or notes and the ebook freezes. Unfreezing it loses all those items.

In the Kindle 3 one can go direct to any location and / or highlight, note or bookmark So far I have not discovered any limits to these locations however there may be a limit to highlights in particular books. I have hundreds of hightlights in my eBibles on the Kindle 3 and so far I have not reached any limit. Also, they do not end up freezing the device either.