Speaking with Eurogamer, Scott Warner revealed that once Pandemic Studios were done with Mercenaries 2 anything is possible - even a handheld version of the game. Here's Scott Warner's words:

At the moment we're only concentrating on the versions of the game we've announced, but I'd love for us to work on a handheld version of Mercs! Anything's possible!

What has Pandemic Studios currently busy at the moment is Mercenaries 2: World in Flames, which is being custom built for next-gen consoles, the PC, and the PS2. After they're done with that game, we just might see more Mercenaries for the PSP or the DS.

Mercenaries 2 is set to feature fully destructible environments and is set to look a lot like Venezuela.

This combination of destruction and Venezuela is something that the aforementioned country doesn't seem to like - heck they even asked Bono to do something about it.

Anyhow, all the mercenary focus on next-gen platforms (and Venezuela) should end by Winter, as Mercenaries 2: World in Flames game is set to be released by then. Will we see a PlayStation Portable version of Mercenaries? We certainly hope.