50M is a stretch, but I think it can do it for LTD if M$ doesn't pull it to allow more room for the next xbox. I think the 360 can sell another 10-12 million console in 2009, which would put it past 35 million heading into 2010....another 10-12 million that year, and maybe a bit more, and you'll be in upper 40's...if they don't pull the console and if they launch the nex xbox in 2011, then it stands a decent chance...if no new xbox until late 2011...then 50 million is possible, and it would behoove M$ to ensure you prove BC for the next xbox.