Yes it's been going on for a while now but a new report from IGN is stating that there is a possibility of MGS4 going to the 360. You can check this out on IGN, it's on the front page, or you can check it out below as follows:
MGS4 on 360 Rumors Gain Ground
A positive report comes out of Japan.
by Erik Brudvig
US, October 14, 2008 - According to a Tokyo Game Show report from Japanese investment research firm Morningstar, Metal Gear Solid 4 may find its way to the Xbox 360 after all. Morningstar published a general article covering multiplatform trends that features a quote from a Konami public relations representative that should fuel rumors for months to come. The rep is quoted as saying, regarding MGS4, "We're actively looking into a release for the Xbox 360." While this isn't a confirmation of it coming, it does lend hope to those Xbox 360 owners who haven't plunked down money on a PS3.
However, this little quote doesn't clear the major hurdle Metal Gear creator Hideo Kojima has listed for the title coming to Xbox 360. He has been quoted in several interviews saying a port was likely impossible due to the game being optimized for the PS3 hardware, specifically Blu-ray discs.
IGN has contacted Konami's US representatives for a comment and is awaiting a response. The original Morningstar report can be found here.
This sounds a little rumourish at the moment, but with rumours of a blu-ray attachement coming for the 360, things may be closer to the truth than first percieved. Now i'd post what the original report was but it's in Japanese so i doesn't really matter. I'd be quite happy if this was true. I haven't spent long with MGS4 yet, and i didn't really settle into it, so this would give me the chance to fully induldge in the game.