Conclusion: The TomTom GO LIVE 1005 World is a great device. It has a large screen that is easy to read. The menuing and usage modes are easy to learn and use. The hardware is well designed and manufactured to a high standard.
Summary: had one for years,very helpful - rarely let us down, I'm deaf, lost map on screen in London once when aiming for M11 out! Map update expensive to my way of thinking (captive market),so only now thinking to purchase update!! Replaced the first T T rather than map update.