My friends just introduced me to this game, which I had previously never heard of, and I am lovin' it! The music, as mentioned many times before, is superb, and basic gameplay reminds me of a cross between Megaman and Sonic!
I would gladly pay for this on PSN, hopefully something like that happens in the future!
The discovery of this game, by the way, was due to me posting a link to
this online, where my friends saw it, and clicked on a related link in the article, apparently the guy who did the paintings in the original link(which are so awesome) was involved in Ripple Dot Zero in some capacity as well!