I just wanted to bring this up on the support forum. It looks like the Trine 2 unlock key is missing from the PSN Store. If you try to download the full game, you are only able to download the demo, the unlock key is missing. I was tyring to redownload the game a few days ago and noticed the unlock key was no longer in my download list nor on the store. From reading the threads here, it looks like other things are missing too (like Walking Dead Ep2).
I found a thread on the Network General board where a few other people noticed this too: http://community.us.playstation.com/t5/PlayStation
It would be great if someone could look into this and get it restored.
I didn't check the store, I assumed it was there as well since it showed up back on my DL list. Looks like they also have Walking Dead Ep 2 back up as well.