It was just informed to me by another member that preorders aren't allowed for trade anymore. I've done successful trades involving preorders in the past, so I just wanted to clarify. I'm assuming the rule was added because of a few different reasons, being Paypal's dispute time-limit and the retailer canceling preorders. Personally, I tend avoid Paypal anyways and make it clear to my buyers that this is the case. I also don't ask for payment until close to the release of the item, and lastly if the retailer cancels the item after payment was issued, I would refund myself right away (never happened before). Selling as a preorder as opposed to waiting until release has a few benefits for both me as a seller, and the buyer. I don't up-charge my preorders to eBay prices, which tend to surpass 100 or even 200% of the item's original cost, and in order to keep the item cost's down, my shipping costs are free with preorders. Also involving shipping, many times the free shipping is Release day shipping. If I received the item and then sent it out, chances are it could take an extra week and I would have to tack on an extra $10 for shipping (cheapest being $9 via USPS for small items).
I just wanted to double check before I removed my listing. I also wouldn't mind charging until after the item shipped if the buyer has enough feedback.