
"This pair of images (and now a video!) might indicate that Konami's coin-op classic Teenage Mutant Ninja Turtles is currently up on PartnerNet, Xbox Live Arcade's beta testing network. But let's not confuse our burning desire with reality. The Turtle rights are now in Ubisoft's hands, so re-releasing this arcade romp is gonna take some finessing (note the two company logos in the alleged title screen).
Source: http://www.joystiq.com/2007/02/25/cowabunga-tmnt-xbla-images-surface/