Yeah it has been sort of vague what they are calling a "launch" title. US launch is the 15th of November and the 29th in Europe and it looks like anything released between then and the end of the year can be termed a launch title.
http://www.prnewswire.com/news-relea...220391341.html
Another thing too I have been reading is that almost half the 8GB RAM is going to be consumed by the OS (which is a customized version of FreeBSD 9.0). This is significant in that the RAM (GDDR5) is also shared with the GPU so if they decided to allocate say 1GB to GPU for PS2 then that doesn't leave much left for the game itself.