its okay for people to say there is no problem with theirs, such as a headphone jack problem, especially if they have never experience it. but once they experience the problem, oh yeah, i can see it coming from a mile a way.
there is a headphone jack problem, just check out topics in other forums that ask how many people experience that particular issue. the results vary significantly than the one in this forum. what i am saying is, the results are higher when you go to other forums such as nomadness.net or creative.com
the headphone jack problem is something you should worry about. it might happen to you, or it may not. it is not wise to say, "dont worry about it". it is never wise to give false reassurances, or false hopes.
yes, micro is a fatass. but the fatness is compacted into very small space. it is thick, but the size is smaller than you think. thats the only reason why i might buy micro again, because of how small it is, despite its thickness.
if u want slim factor with 5 gb space, voice recorder, touchpad, replaceable battery: the h10 is the way to go. but the micro is also a decent player, if you get the perfect one that is. hell, i might get an iriver h10.