http://www.joystiq.com/2009/05/19/insomniac-tweet-hints-at-upcoming-ratchet-and-clank-lbp-pack/

"A tweet sent from the official Insomniac Games twitter account seems to indicate that Media Molecule is currently working on a large Ratchet & Clank pack for LittleBigPlanet. The tweet itself is quite hard to decipher, but it does say that "R&C content" is done and that it is "coming soon hopefully." There's also a mention of more levels, which are coming, and talk of a "big pack, bigger than MGS even," which is "up next for Mm."

Whether this big pack is separate from the Ratchet & Clank content is hard to tell. Either way, it's going to have to be pretty awesome if it intends to be bigger than the Metal Gear Solid pack that was released in December. We're looking forward to hearing clarification on whether this tweet is talking about one piece of DLC or not, not to mention the details of the pack itself. Hopefully we'll hear more soon."

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A Ratchet & Clank pack would be sweet. I don't really play any other levels then the ones MM made anyway, so any extra maps are first day buys for me!

The R&C pack is definitely a good thing, I am just surprised that it took this long. Now for a pack bigger then MGS, that had a good number of levels and also came with the paint gun. It would be impressive to be bigger than that.

Hey, if this is true than I'm definitely buying it ASAP. Man, I wonder how much money Sony has gotten from all of the LBP stuff I've bought!

I've really been hoping for new LBP level packs as well as the Fallout 3 DLC. Both of my dreams have been answered today

Now I just want the MGS4 trophy patch and new content in the Subsistence form. I heard it might be called Oxide.

Wow great.

LBP diffenetly needs a melee weapon, perhaps Ratchet's melee weapon.

Great news, but I also need a Jak & Daxter pack!! and an Uncharted one

Hey, I wouldn't complain if they added a wrench. I'm hoping for a RYNO-esque weapon though. That would be cool. ^_^

that would be bloody cool , but also would make the game very easy.

LBP isn't really about killing things though; it's more of a platforming thing. And they could make it hard enough, I'm sure. It doesn't have to be like the Harbinger or the RYNO 3.