I don't usually start threads, but I thought I'd get the ball rolling now that people have had their Slims shipped and I know I'll be receiving mine soon.
If you're posting impressions, it would help to know what DAP and cable you're using, as well as what music you listen to and roughly how loud, eg: low, medium or loud.
Updates: Links have been fixed.
HeadphoneAddict posted some comments on the prototype he heard some time ago.
vpivinylspinner was the first to receive his and take pics here. (Page 4) Size comparisons here too (page 5).
Walkgood followed up soon after with un-boxing and close-up pictures. (Page 5)
SoupRKnowva has compared his to the protector. See also his subsequent posts on that page.
June 9 Update:
Useful info/discussion about plugs and scratches starts from page 31. If you want the meat of the info, start from this page.
qusp posted a solid summary/review.
Hotdoggie also posted a good review, including how he buffed out some scratches.
August 2: A couple of pictures:
Oyaide/FiiO L5 LOD, Whiplash TWAG LOD, Pico Slim, iPhone 3GS:
Slim/iPhone 3GS thickness comparison:
Slim/iPhone 4 comparison: (They are the same thickness):