Jet set radio Has apparently been doing very well!

[Nameless 24]

Namesless, you're thinking of this...
http://gamasutra.com/blogs/RyanLangley/20121011/179195/Xbox_Live_Arcade_Sales_Analysis_September_2012.php

Yes, thank you for that Aki-at!

I think considering the only thing SEGA pays for is bandwidth to keep the games on the services, I would say it's a moderate success (in the lower spectrum of moderate), but I guess they are aiming for long term sales for it to be profitable.

[Nameless 24]

Seems that JSR on the Vita is delayed. 

http://www.joystiq.com/2012/10/16/jet-set-radio-vita-delayed/

Jet Set Radio is not styling its way to PlayStation Vita today in Europe, Sega announced. Speaking to VG247, a representative confirmed the game's skated past its due release date because of necessary optimizations required for the Vita platform. Sega UK couldn't confirm to Joystiq if the same delay affects the North American version, also due today.

The skater came in HD to XBLA and PSN (PS3) last month. JC said in his Deja review, "The style is as fresh as it was then. Despite being made ten years ago, the candy-colored vision of Tokyo's streets still looks a little futuristic, a little modern, and essentially timeless."

Update: Sega confirms the US version is delayed too, and that a final release date will be announced soon.