Retro City Rampage on DSiWare "Not Out of the Question"
"It's not out of the question a year from now or so, but it is launching exclusively on consoles at the moment," said Retro City Rampage developer Brian Provinciano when asked if his game would ever make it over to DSiWare.
It's not the most promising statement, but it definitely doesn't eliminate the possibility of a port, spin-off or sequel. Retro City Rampage is currently set for a fall 2010 release on WiiWare. Other consoles have been mentioned as well, but none by name.
Via FNintendo (Google Translate)