I also know that Unilever has been working in different countries with such a tool, but I wanted to share with you this video to clearly show you what the future of merchandizing will be.
I have also seen a great tool at Les Journées de L'IFM, allowing someone to use its mobile phone to take pictures of each elements of a store, than to process it to have extensive data of the product range in one store. I have seen also some tools allowing someone to create a merchandizing plan in minutes simply by giving information on the merchandizing tactics to use (raise sales, profit, limit stock outs...).
Those initiatives are great, because I still believe that the operationnal process of merchandizing is still too slow to have a good strategy about it.