Metal Gear Solid Portable Ops + review at Gamespy.

"Konami, working with Kojima Productions, has done a fantastic job with every Metal Gear Solid re-release or collector's edition to date. Sadly, MGS: Portable Ops + abruptly ends that tradition. We're not sure why Portable Ops + not only doesn't improve substantially on its predecessor, but actually trims off numerous features. The game is only twenty dollars, but it's a dubious value."

Full Source: Gamespy