The chequered history of Rock Band in Australia could be set to take yet another turn, as an undisclosed retail source told us today that the game's release may be delayed indefinitely. Word is that retail buyers simply aren't interested in stocking a bulky product that's a year old and will cost more than its similarly bulky – and up to date - competitor Guitar Hero: World Tour.

This is dire news if true, yet that's not the worst of it. Further rumours suggest that - for similar reasons - Rock Band 2 may not come out either, and that the Guitar Hero series has the market sewn up. Whether EA would simply cede control of such a lucrative genre to a competitor remains to be seen, however, and we're hoping that it will still push to release the second game in Australia.We've approached EA for comment but have been unsuccessful so far. Stay tuned for more info.