It's time for me to upgrade my current GPS. I'm a self-proclaimed techno idiot who doesn't have much interest in avionic gadgets and even less in reading gadget manuals. So I would appreciate your help and informed opinions on identifying the perfect GPS for me based on this personality profile and the following essential requirements:
  • Portable
  • Touchscreen, moving map
  • Larger size for easy, bright readability including in sunlight
  • Highly intuitive and extremely simple and easy to use so that the manual is almost redundant
  • Expandable
  • Fast and easy to update data
  • Price is not a factor as it is less important than the above requirements

I have done my own research and have narrowed my search down to 3 possibilities. Your input is much appreciated in helping me to make an informed and wise choice. Thanks!