Ratchet will sell over 1mil easily

Motorstorm sold over a million because it's bundled with the console. You can't get a PS3 in many places without getting Motorstorm in some areas.

Motorstorm would have gotten to 1mil anyway. It was practically there before the bundles even started. Motorstorm was hailed has the only decent launch game by majority of Europe so they bought the game. 

@kasz

It sold 1 million before it was bundled..

The eye of judgment! HaHaHa, I preorder mine.

Seriously, at current PS3 userbase, I don't see any game that can break a million easily. It needs to sell well in at least two major regions to achieve that goal.
GT5 Prologue, with great potential, but I don't know how many people would rather wait for the full version.
How about "Pro Evolution Soccer 2008"? It will do well in Japan and Europe.
Devil May Cry 4 may break a million too.

How could I forget this one:

Resistance has a 35% attach rate?!!

So any ps3 game that hits 1-2million has atleast a 20% attach rate?

I would guess GT5 Prologue. I don't think the PS3 has drawn in the crowd that bought Ratchet on the PS2.

Isnt GT5 prologue just a download? Anyways im guessing Ratchet and Clank. Its big world wide. Not as big in Japan as in America but still pretty big.

Blu ray and download.

Agreed. At the current install base, any title would need to do well cross region. Which is why the PS3 has had so few million sellers, as most of it's games right now are aimed at specific regions.

I honesty don't know what the next one will be, but then again, I'm not sure what the release dates are, so I don't know which big hitter is coming first.