We use routers from the FriendlyElec/FriendlyARM NanoPi range - they're pretty much the same deal: custom firmware built on top of OpenWRT. The advantage with t

We use routers from the FriendlyElec/FriendlyARM NanoPi range - they're pretty much the same deal: custom firmware built on top of OpenWRT. The advantage with the NanoPis is they're tiny, and cheap enough to be almost disposable. When we're building test/measurement hardware, we throw in a NanoPi configured with a phone-home VPN. If the hardware runs into issues or needs modified, the user can just plug in an Ethernet cable and we can get remote access. The only downside of these is that we've experienced reliability issues with one particular model of the NanoPi, which I suspect might be down to bad solder joints. The Omnia looks a lot more solidly built.