If we're also counting console exclusives then you can add these:
- Alan Wake
- Metro 2033
- Splinter Cell: Conviction
- The Witcher 2
- Tropico 4
- Akai Katana
- Deathsmiles
- Deathsmiles II
- Dodonpachi Resurrection
- Minecraft
- Fable 3
- Raiden Fighters Aces
- Titanfall
- Deadfall Adventures
- Fantasia: Music Evolved
- Fable Anniversary
- Halo CE Anniversary
I wouldn't count remasters or Anniversary editions, given that it opens the floodgates to all the HD collections Sony has released in the past few years. That and they have been previously available on other platforms.