Hi there,
I've received 4 NanoPi Neo (with heatsinks as suggested by @tkaiser) recently. Here is my my first impression and also I've come across some minor issues. I hope It would be useful.
I've installed Armbian_5.27.170403_Nanopineo_Ubuntu_xenial_dev_4.10.3.
Also tried dietpi (kernel 3.4) and h3-mainline-ubuntu-core-qte-sd4g-beta-20170228.img (FrendlyArm, kernel 4.10)
So far for good. Armbian works like a charm I have been able to install Docker