Ilomilo's developers Southend Interactive recently posted a FAQ on their blog
"Today I will answer some frequently asked questions… and also some less frequently asked questions that I find relevant nonetheless.
Q: When are you guys going to release ilomilo?
A: It hasn’t been announced yet, but it should be this year at some point.
Q: What formats are you releasing ilomilo for?
A: So far it has only been announced for XBLA, but there is a possibility we will release it for other formats in the future.
Q: I’m a Playstation 3 owner and it doesn’t look like you will be releasing ilomilo for PSN. Does this mean you hate PSN?
A: No, we do not hate PSN. In fact we released Tecmo bowl for PSN just recently so we have nothing against it at all. We always want our games to be available on as many platforms as possible, but those decisions are up to the publishers to make."