If you haven't figured it out yet, Team Kojima has been treating the development of Metal Gear Solid: Peace Walker for the PSP as if it really were MGS5 for the PlayStation 3.
According to the Examiner.com citing the latest Kojima Productions Report podcast, Sean Eyestone said the team for Peace Walker is just as big as the team that handled MGS4. And not only do they have "hundreds of people" working on the ambitious project but "in some ways, it's even bigger than MGS4." They then talk about how this PSP title actually has the most content of any game in the series, which is a really impressive achievement, especially considering the inherent technical limits of the portable unit in question. The game had to be delayed until May 25 – something Kojima really disliked and apologized for – but when it comes out, you can bet that fans of the franchise will flock to snag it. For 2010, there's really no more important game for the PSP, unless you want to count the North American release of Kingdom Hearts: Birth by Sleep and even that would be debatable. Just about every MGS should receive the requisite amount of attention, as far as we're concerned.
As for Metal Gear Solid: Rising , we'll be interested to see how that one turns out. The hardcore die-hards seem to be skeptical but our hopes remain high.
Related Game(s): Metal Gear Solid: Peace Walker