There's not a lot of details on this one just yet, but Activision CEO Mike Griffith has dropped word in an earnings conference call that the company's upcoming Guitar Hero: On Tour game / controller combo will not only be released on its own this June, but in a new Nintendo DS bundle as well. No word on a price, unfortunately, nor is there any indication that the DS itself will be undergoing any Guitar Hero-inspired changes, but it seems like those little details should be making themselves known soon enough.