I have just spotted is from a blog post. Looks like Microsoft Endorsed Win 8 installations running from Memory sticks. Seems pretty cool!
I have an Acer Iconia W500 with windows 8 on it and whilst it runs well as a general browsing computer, the limited space 32gb makes dev difficult. I had originally installed Visual Studio Pro on it but after several updates the space just seemed to bloat and I constantly struggled for space.
The tablet itself is rather long in the tooth now and has a sub 1ghz amd processor bit it suffices for a bit of light coding at Geekups and for messing around whilst I was learning the Windows 8 app ropes.
I am hoping the link below is the answer. To run the programs from an ssd mounted like a directory.
Of course with the Surface Pro now reduced to a reasonable price I hope to somehow convince work to help me obtain one. I will need to think of a good reason.... If only the NHS decoded to by a job lot and decide that was thier tablet of choice from now on!