Well, I'd rather not turn this into a "my console is better than yours" thread.
Neither would I.
Suffice to say that I'd love to have Mayhem Intergalactic on consoles, but it's a little out of my reach at the moment. Getting on WiiWare generally requires more industry cred than I currently have, or publisher backing. Same for XBLA. XBox Community Games is a less remote possibility; I simply just don't have time to port it myself, and I'm not sure what the return on investment will be like in the long term on that channel, since it will quickly get clogged with low-quality hobbyist games (not that I have anything against low-quality hobbyist games, I've made enough of them myself in years gone by
).
I think it would also work really well on the Nintendo DS, but that's another platform with strict gatekeepers. Publisher support would be required there too.
None of this rules it out for the future of course - if I got publisher backing to put Mayhem on any of these platforms then I'd be thrilled.
I'm merely saying it's not on the cards right this moment.