So... the qunexus will fit nicely in the little backpack I take to work. And so will my (slightly old) Samsung X120 11 inch laptop. It looks like a netbook but actually has 3G RAM and a Pentium U4100 dual core processor. I was dubious about how well this might work but after some preliminary tests it looked like I could get at least 6ms latency from the inbuilt audio using ASIO4ALL and so I set up most of my main studio stuff, including Reaper (sorry Cake!) , Kontakt 5, RealLPC, RealStrat and RealGuitar. Amazingly, this all seems to be working beautifully. My daily train journey to work is going to be far more interesting now; the qunexus sits nicely on top of the laptop keyboard which, by happy accident on the X120, is protected by a slightly raised edge that means keys don't get pressed. I had been considering purchasing a Surface Pro 2, entranced by the idea of a touchscreen and a much more powerful processor - but - so far - this looks like it is going to work. I have dreamed of being able to do something like this for a very long time, but could never imagine a suitably compact keyboard would ever actually be playable -amazingly, it is entirely possible to play quite fast runs accurately, albeit with some changes to technique, but - I'm simply blown away by this gadget. In fact, I'm probably gonna buy another one - you can have more than one connected - and they will almost exactly cover the laptop keyboard and give me four octaves - and since the X120 has three USB ports that's no problem. It's just a matter of thinking like an organ player with multiple manuals, and I've learned years ago how to play that way. Now, if I could find a very portable but high quality speaker that would plug into the laptop... but for now, headphones will do....