Really cool, but can we get a "flat" version. Like something that would feel at home in iOS. Also, can you make a version without the coin, but just the 8 lines representing NEM? Actually, I was sketching logos last night and came up with the same idea as you, representing NEM with the 8 lines. I think it is the way to go for a logo.
I am not really a fan of flat designs to be honest, but I will create a flat version as well when I am home again.
As for the 8 lines, I think one nice thing about it is that you can easily reproduce it, as the "trigram for heaven" character (☰) is part of unicode charsets:
http://www.fileformat.info/info/unicode/char/2630/index.htm