As from the the same Sony brand of the PSP. Here are the top "PS3 Trophies" posted on blogs I found browsing the web today:
1. PS3 trophies, in-game XMB due July 2
2. PS3 Trophies Not Retroactive
3. The PS3 Trophy sound and other 2.40 FAQs answered
4. PS3 trophy addicts can track their games at PS3Trophies.org
5. What Sound Should Winning A PS3 Trophy Make?
6. PS3 Firmware 2.40 Released; In-Game XMB, Trophies, & More!
7. [Update] PS3 Trophies will have sound effect