ebay / paypal ........ I just don't see it in a million years
1) Its direct competition to bitcoin
2) ebay / paypal love reversing transactions. How can they reconcile that with bitcoin?
PayPal's CEO seems to like Bitcoin, he at least mentioned the possibility as a funding method as soon as there was enough regulatory clarity.
Not that I would care, rather see both of them ignoring it... On the other hand it would boost Bitcoin and I would like that

Well PayPal could accept it as a funding method which I'd definately be up for as it gets around the merchant problem that not enough of the places that you want to buy things from accept coin still, otherwise though I hate PayPal with a passion.
Ebay could implement an escrow side of things, where the bidder pays Ebay and then they hold the coin until the seller has shipped and the bidder has received it but it's a bit of a stretch as it would make payments a lot slower compared to PayPal.