Is there something like this available commercially, or at least a guide on making one with a Pi? I suppose reading the paper is one option. EDIT: Link to the

Is there something like this available commercially, or at least a guide on making one with a Pi? I suppose reading the paper is one option. EDIT: Link to the paper seems to be broken. Here's the PDF: http://www.cs.vu.nl/~ast/Publications/Papers/lisa-2006.pdf http://www.cs.vu.nl/~ast/Publications/Papers/lisa-2006.pdf