Given that VR is starting to head down the wireless route, the principle of backpack computers seems like a market with a very limited leash.
One of VR's biggest problem right now is wires. There's too many of them, they're a tripping hazard, and it ruins the immersion. So one of the interim responses has been to create portable computers, keeping all of the wires around your body and shoulders rather than lying on the ground.
MSI got in the game early, and ZOTAC has now joined the fray with the ZOTAC VR GO. It's got an Intel i7 CPU (but we don't know which model yet -- possibly Kaby Lake), 802.11ac Wi-Fi, a GeForce GTX 1070 mobile chip, three USB 3.0/3.1 connectors, an SD card reader, four HDMI/DisplayPort inputs, two 3.5mm audio ports, an M.2 PCI-e SSD and a custom-built motherboard and air cooling unit.
The whole thing is battery powered as well, but we don't know what the battery life is yet. There's no price or specific release date either, but it's expected that the VR GO will make an appearance at CES in early January. I'll be at CES this year, so if I spot it on the show floor and get some time with it I'll let you know what it's like.