In July 2007 I bought my PSP when I was in Richardson, Dallas for a 2 weeks' training. Because I was supposed to travel al lot for my new job, I wanted to by a PSP to help me kill time whenever I would get stuck at an airport. I bought it in GameStop in a Mall near Dallas International Airport, together with GTA Liberty Cities and a movie called Tomb Raider.
I really like GTA Liberty Cities because it gives you all the freedom to discover the game. I don't play much but occasionally I touch it. I also like Sudoku which I bought in The Netherlands.
The PSP currently has firmware 3.50 on it but I plan to downgrade it using a genuine version of Lumines. Still have to do this though.