This may just make a valid reason for me to get me an Xbox 360. Jetpac was one of the first games made for ZX Spectrum, and we used to play it for countless hours back in the eighties. It was released by Ultimate - Play The Game [makers of many legendary Spectrum games, including Atic Atac], and now, Rare, descendant of Ultimate, decided to re-release their first title, but with complete visual makeover and enhancements, worthy of contemporary console like Xbox 360.
Of course this is just a serious nostalgia trip... I'll probably never buy an Xbox, but I'm sure someday I'll be able to find someone who'd let me try this baby out, Retro mode included [see picture below] :) One thing will for sure be different - as Rare wrote on their Jetpac Refueled introduction page - I won't have to wait 5 minutes for it to load...
More info on Xbox Live Arcade