well i cant see any links
but i had a simalar problem last year
and i went with the sony over a m515
mostly because of the screen resolution
but my only problem with it is the memory sticks
for some reason everywhere around here stocks only 64mb ones or higher
all i want is a 16mb stick
and i can find ones that fit in the m515 no problem at 16mb
but im still happy i got the sony instead, the scroll wheel kicks ass, its great for reading eBooks, and anything thing else that needs scrolling
i dont know if its the same sony, but mine is the SJ20, i had an SL10 with normal batteries, and in a week went throught 4 aaa batteries, the rechargable battery is nicer to have
and even though on the box there is no mention of apple compatability its there, there is stuff missing like memory stick mounting and some others, but i can sync my email, addresses, datebook, pictures, and set the time fine