Did you folks even read the blinking description on the HMV website?
Source - HMV websiteWhen Liberty City Stories was released on PSP, Rockstar took the world of their beloved PS2 title GTA 3, created new characters and story, and added exciting new features such as ad-hoc WiFi multiplayer modes. Following a successful port to from PSP to PS2, it was only a matter of time until 2004's GTA: Vice City experienced the same destiny.
With San Andreas the only city in the GTA universe yet receive the Stories treatment, we wouldn't be surprised if Rockstar eventually end up bringing out 'San Andreas Stories' on PSP and/or PS2. There's no word from the developers about the game at this stage, but if you sign up by clicking the above link, we'll get in touch with you the second that the game is available to pre-order. If it ever does come out, that is.
If anyone could contact Karl B. to rectify that, I dont know how to. :)