Ok... Well, As far as I am aware, The 2yr replacement covers it under normal wear and tear... Good and bad things to this...

Bad: Does not cover any accidental screen damage

Good: Does cover normal wear and tear... i.e: If the battery, wifi, internals, charger, usb mode, card, screen fail under NORMAL USAGE... As in if your screen stops working for no apparent reason, but is not broken... You just take it into the store and they hand you a new one... With the PDA coverage, You would have to file a claim and wait about a week for a replacement to arrive, and in most cases is a refurbished unit... So I guess you can view it either way... If they told you it covered screen damage though, I'd hold them to it. You will have to double check... i know it varies state to state a little bit... Thats how we do it in Ohio at least...