Data Visualisation Application - TreeMapping - REST/FLASH

Looking for a developer for a very interesting and rewarding data visualisation project using TreeMapping. Prefer UK developer based in London but consider worldwide. Please see MUST HAVE'S below before bidding to avoid wasting your time and mine. Happy to consider junior people and no problem with anyone using the final output in their portfolio. MUST HAVE's Experience with REST Architecture Experience with Ruby on Rails Able to put together a websever (Apache) with ease. Ideal: TreeMapping experience (at least understand the concept) FLASH/FLEX experience Experience or would be able to get up-to-speed very quickly with [login to view URL] or [login to view URL] Any questions ask feel free to ask. MD