Hello,
I was loking at caskal logo's and remembered something in my mind that looks strangely familiar and have my suspicious as fellow designer.
http://dribbble.com/shots/1265585-Freebie-the-Dpnto-Ui-IconsThough as a designer one thing I see in his work for those particular logos are the edges of the logo(icon?) something not right there.
And the share amount of such variety of logos in such short notice seems
fishy,lets just put it that way

Anyways, have a good day everyone , I might be wrong, but as a designer myself in this field for 7 years I just put my couple cents as what I see

Shatas