I could not find any other thread were this would fit in:
With Ipod Touch side by side:
As you can see, this thing is big, but same goes for the sound. I have had a couple of Cowon and iRiver playes and the last one I got was the Apple IPod Touch, but the X7 sounds at least as good as the best of the players I had so far. I was listening with my Etys, Beyer DT250 and even Stax 3030 set. For the Etys and Beyers I did not use an amp simply because I do not have one for dynamic cans anymore. The fact that the X7 does not have a dedicated line out does not bother me, as this monster is still portable.
The speaker is OK, better compared to the IPod version. UI and handling are good and the touchscreen response is very quick.
The reasons why I ended up with a portable player that looks somewhat retro due to its size and reminded me of my first walkman were the to expect very high audio quality, the 160gb storage size, the battery life, the format it supports and that it does not require anything but drag and drop to put my files on it.
My IPod is now in hands of my wife, the smaller flash based Cowon that I still have will of course stay with me :-)
Let me know if you got any questions and I will try to answer them.