Is Sony still making games for PS2?

I would imagine not. Any games that were originally scheduled to be released for the PS2 will probably still be released. Games that are extremely popular such as grand theft auto will be released on the PS2 but any PS2-exclusive games are probably no longer in development unless the developing company is under contract with Sony to complete any remaining game obligations. For example, if a company is contracted to publish games with Sony, and the company planned to start a game production in January 2007, then that game should still get released. Keep in mind that the PS2 is slowly being phased out due to PS3 release so you can probably expect that games will stop being released by the end of 2008 or sometime in 2009 or 2010.

AND GRAND THEFT AUTO IS RELEASED NOW

GTA 4 was not released for the PS2

The last game for the USA market I saw released was in September 2011. There could still be more PS2 releases, but no exclusive PS2 games will ever be developed again. Sony is not the only PS2 game developer and my answer is about all PS2 games not just the Sony Releases