Just a bit of news to expand on what JoeInJpn mentioned a few days ago...
Up until a few weeks ago, when you used the services of roaming park photographers, you would recieve a paper reciept and pick up your photos at the Camera shops at TDL and TDS. Now a service similar to Photopass has been introduced.. and it's called PhotoKey.
When you have your photo taken at the park.. you will be given a Photokey card, that will allow you to have your park photos 'saved' in a personal accout that can be accessed here (on the TDR official site:
If I am not mistake.. and Joe please correct me if I am wrong.. You have a photographer take your picture, they give you the Photo Key Card, that has a personal ID number on the back side. You can use the link above to access your photos using the personal ID # on the card.... and then you can order and pay for the photos from your own home. I believe guests still have the option of buying such pictures at the Camera Center. Please note the Photos On Line service is only available in japanese.
I hope JoeInJpn or Ichigopara can provide more info on this topic.