Is there going to be a metal gear solid 4?

Yes, it has been confirmed for the PlayStation 3. It is called "Metal Gear Solid 4: Guns of the Patriots". There is no release date yet so maybe late 2006 we are looking at. [http://www.gamespot.com/ps3/adventure/metalgearsolid4/index.html?q=metal%20gear%20solid%204] [http://en.wikipedia.org/wiki/Metal_Gear_Solid_4]