All the US A330 widebodies offer flat seating in a semi private pod now. There is a master thread on the A330-200 and A330-300.
Exactly, here is the thread for the A330-300:
http://www.flyertalk.com/forum/us-ai...er-thread.html
And here's the one for the A330-200:
http://www.flyertalk.com/forum/us-ai...er-thread.html
Note: US doesn't have First class, but has Envoy, similar to Business on most other carriers.
Please feel free to skim the appropriate master thread for your flights, and post any questions there.
Thanks!
aztimm