M8 is a great game changer but even though Head-Fi created it, they somehow choose optical instead of coaxial and now we can't link it with daps like DX50, X3 or X5 etc. Only overpriced AK series can do it or bulky DX100/R10. I already bugged Centrance about a new M8 version with coaxial input but it won't happen in the near future apparently.
To be honest, I so want to have M8 in my setup but I am not going to get AK dap just because of it. iTouch has a very small capacity the only option for me is a half dead iPod Classic. Even though it doesn't play high res, I think for on to go, my ears will be okay.
Or.... I can get X5 or DX50 and pair a good old portable amp from line out/in and my stack won't be huge like M8. Then I will have to skip M8, which makes me sad because I really wish to get it.
So many options, so few money