>ZOTAC unveils the world's first fanless Core i5 mini-PC

It's not the world's first. for example, QuietPC will sell you an Intel i5 mini-PC (i.e., a NUC) transplanted into a larger all-aluminum finned case, which allows them to remove the one fan the Intel box has (a CPU fan):

http://www.quietpc.com/sys-ultranuc-pro-fanless.

This QuietPC box has the same i5 CPU as the base model 2013 Macbook Air, BTW.