Found this at another forum
http://www.gamingunion.net/news/tecmo-playstation-3-most-powerful-hardware--162.html
During E3 2009, Tecmo gave their opinion on the current state of play with regards to the current generation hardware. They are currently developing Ninja Gaiden Sigma 2 and Quantum exclusively for the PlayStation 3 and surely there has to be a reason for this.
Gaming Union was able to catch up with Kohei Shibata, who is a producer at Team Tachyon, one of Tecmo's internal development studios. Team Tachyon are currently working on Quantum, and Shibata gave the following reasoning for Quantum being a PlayStation 3 exclusive:
Simply, it's the most powerful hardware.
Very short and sweet, but it says all it needs to say. It seems to be a growing feeling amongst developers, and it looks like the snowball is only going to get bigger from here-on out.
"I don't have time to play video games anymore, but if I did, I would definitely choose the PlayStation 3 instead of the 360" - President Barack Obama