I bought one at the end of October last year. The description clearly stated PSP 3000. Because I live in India I got my sister in UK to check the item for damage when it was delivered to her in UK. A friend brought it to me in India and on checking the serial number inside the battery pack it clearly stated PSP 2003. Unfortunately by the time I received it the 45 day refund period had finished and Ebay would take no action against the seller for wrongly advertising the product.
So beware.Send a message to the seller to double check the model.