First, From Software plans to port Tenchu 3 (also known as Tenchu: Wrath of Heaven) to Sony's handheld as Tenchu 3 Portable in August in Japan. Following up that title will be Armored Core Silent Line Portable, destined for a November release, and Tenchu Korenai Portable, which is scheduled for a January 2010 release. Finally, From Software plans to finish off its porting spree with, yep, you guessed it, some more Armored Core, with Armored Core Last Raven Portable set to release in March 2010.
Oh, and one last game that is surprisingly neither Tenchu nor Armored Core -- Fu-un Shinsengumi: Bakumatsu-den Portable, which is planned for a December release. There's no word if any of these titles will be available outside of Japan, but we'll be sure to keep you posted.