2011 is the biggest year in the PS3's history, at least when it comes to the no. of exclusives. There is no doubt in that statement. But, PS3 is also known to delay many of its games as well.

In 2010 the following games were delayed:

• Gran Turismo 5

• Socom 4

• LittleBigPlanet 2

• DC Universe Online 

• FF 14 

Feel free to post if there were more.

Looking at the list for 2011 we have:

• DC Universe Online (PC,   PS3)

• LittleBigPlanet 2

• Killzone 3

• Trinity Souls of Zill O'll

• Hyperdimension Neptunia

• MLB 11 The Show

• Pixeljunk Shooter 2 (Downloadable)

• Yakuza 4

• Tomb Raider Trilogy 

• Ar Tonelico Qoga : Knell of Ar Ciel 

• Free Realms (Downloadable, PC)

• Motorstorm Apocalypse

• Socom 4

• Splinter Cell Trilogy

• Ni No Kuni (PS3, DS)

• White Knight Chronicles 2

• Tales of Xilia

• Infamous 2

• Twisted Metal

• Resistance 3

• The Journey (Downloadable)

• Uncharted 3

• Ratchet and Clank All 4 One

• Atelier 2

• Disgaea 4

• FF 14

PS Move Only titles:-

• PS Move Heroes

• PS Move Ape Escape (Downloadable)

• Sorcery

Delayed or cancelled games:

• The Agency (Cancelled)

• ICO collection (Delayed)
  

• The Last Guardian (Delayed)

(Striked games are released)

Now I know I am probably missing on some exclusives for the PS3 but you can post it down below. This is just as a reference to know how many will be delayed this year.

EDIT: PS Blog 

Number of exclusives in 2011 =  29 !

(Not including downloadables and PC games, 23 )

I said 4-7. c'mon Sony, prove me wrong (in a good way!)

A few. 

I'm more interested in whether Mass Effect 3 or Elder Scrolls 5 will be delayed to 2012.

None of the announced PS3 exclusives with dates with be delayed, so TLG can come out whenever it wants as it has no release and likewise, something like inFamous 2 doesn't really have a proper release date either

Yous need to get one thing straight first. A game is only delayed when it has an announced release date. Coming 2011 is not a release date but a guideline to when you should expect a title. 6 or 7 of those titles mentioned don't have a release date yet so unless they are given a street date and then that street date is moved. Only then is it a delay

They said its coming 2011, but if it releases in 2012 then it is a delay. This thread is more like a prediction or guesswork.

No only 1 or 2 titles announced were said to be coming 2011. The rest were only announced with no information on a release date. People just assume they are coming 2011 because they were announced last year.

"1 or 2 games" is releasing in January itslef, at least according to Sony they are.

Almost everything else has been slated for release in 2011 in E3 or some other event.

 I think The Last Guardian, Twisted Metal and The Agency will be delay until early 2012.

The ones coming January 2011 have release dates. If the release dates move then they are delayed. Also if you look back on some of those announcements or research them you'll find that some of them were just announced . Like Twisted Metal. It was only announced at E3 and David Jaffe said recently he hopes to release it in Fall 2011. Thats not a release date just that he hopes it releases then.

Also Socom 4 got delayed but Zipper never said it will be here in 2011. They just announced it was delayed and we assumed. The Last Guardian never had a coming 2011 or a release date. Same with FF14. When the delay was announced they never mentioned a 2011 release date. They just gave there reasons why it delayed.