I am thinking that something cool with LittleBigPlanet 2 will be that someone will go... You can't do that in LittleBigPlanet 2, and then someone will come up with a level that does. 

So, I woull have to say this, it does look like LittleBigPlanet 2 DOES do everything except for...

MMO
Chess game with a good AI

A Simcity type game.

A game like Nethack or Diablo, with random level generation.

Ok, let's see if anyone can do those.  Will be interesting to see if anyone can.

I was thinking about Chess and if it could be done and I'd say yes but using AI might be a tall order.

I think a simcity might be a bit of a stretch but who knows?

as for Diablo, there are already 2 Diablo like dungeon crawlers on the go, as for a random level generator, I don't think that's possible at least not yet.

I reckon you could make it random.  You'd need multiple pre-built level pieces (which would be easy in LBP or LBP2)... then you'd need to use an emittor to put them in place.  I reckon you could create a selection system to randomly fire off the emittors to place the level pieces into the level...

So yeah, random level elements should be very doable I think.  MMO is clearly impossible as there is a four player online limit per level (so far as I know) so that pretty much rules out the massive bit.  But a 4 player SMO would be easy peasy.

Chess though would be tough I think.  Also Sim City - I mean the city going about it's business.  Placing buildings, etc. would be easy enough via emittors and pre-built building objects.

The previously mentioned Dungeon crawler.

More awesomeness!

Left4Dead

Street Fighter!

Contra!

The cake is not a lie!

Everything you've always wanted to know about Stem cell research but were afraid to ask.

Ok, I will be awaiting MULE for LBP2 then.  Yes, gimmie MULE!

everything i've seen so far shows me there are limits, but like in all areas of game dev. we will find ways around them