I have no intentions of upgrading my iPAQ 3835 to any newer model
simply because its display is easier to read than the newer technology.
The display's visibility improves as the ambient light becomes brighter
(just the opposite of the transflective displays used on newer models).
I NEVER use backlighting when flying.

The 3835 can be purchased for less than $100 on eBay.

Jean wrote:
Having used it for one year - The 4700 is brilliant - apart from a poorly
readable display in bright sun (even with anti-glare and full backlight !).
My old 3800 had a better outdoor display (but was also much slower ...)

Jean