I want to know the answer to the following question:
What Gran Turismo game was shown in 2007 but not released until after 2007?
All the background I'm provided with is that "They also showed off a number of titles that were set for release in 2008 and 2009; most notably Killzone 2, Infamous, Gran Turismo 5 Prologue, LittleBigPlanet and SOCOM:". Is that enough to answer the question?
Answer: yes