I think it is too expensive at 25 pounds - I remember Lenovo had made something like ths for the olympics or something - there was a post on Lenovoblogs too. This might be a decent DIY project, in addition to my Lapdawg DIY for summer
ps: Found the link ... Lenovo's solution while marginally better , will lead to lots of strain for sure.
http://www.lenovoblogs.com/designmatters/?p=63




