Excellent feedback that we will pull into the project. The tools and museum initiative behind this (see http://en.wikipedia.org/wiki/Wikipedia:GLAM/DER ) are at the 'proof of concept' stage and are under active discussion and improvement. The demonstration being organized will flush out a number of teething troubles but the intention is to create a model for Wikipedia and UK institutions to adopt easy to apply and use QR codes for more interactive public exhibitions. The initiative is crowd-sourced, so if anyone feels they can help please set up a Wikipedia account and join in. There are a range of international Galleries Libraries Archives and Museums collaborating in different ways, see http://en.wikipedia.org/wiki/Wikipedia:GLAM for an overview.