Well i was reading about Naughty Dog, one of my favourite devolopers and i noticed something familar 

These are the games they have made:

Crash Bandicoot, Crash Bandicoot 2: Cortex Strikes Back, Crash Bandicoot 3: Warped andCrash Team Racing

that's 4 crash titles

jak & Daxter, Jak II, Jak 3and Jak X: Combat Racing

and thats 4 jak and daxter titles

and what was familar is that they produced 3 titles then a racing game.

Now they are making the Uncharted series and they have produced:

Uncharted: Drakes Fortune, Uncharted 2: Among Thieves

and what remains is Uncharted 3 and Uncharted Racing 

Can you imagine Uncharted Racing Lol 

Uncharted PSP, that will be fourth

Or rather Uncharted PSP2.

Well nathan drake is available in modnation racers xD

Those games are ..a bit diffrent than Uncharted though xD

This theory is used a lot , Crash isn't owned by them (Universal Interactive) so they don't make them anymore, Jak and Daxter however is owned by them (Sony) , and they WILL make more on PS3 you can count on it.

Yep PSP2 launch title, GDC 2011

unKarted

yea that should be the name 

lol, that's pretty funny.  i hope they don't make a uncharted racing game, that would be weird.

I see a Uncharted 3 coming out next year. Although " UnKarted " seems unlikely.