I want a list of many different types of PDA's (Personal Data
Assistants) on the market.
Each PDA has to have at least one special feature that makes it
different from the others on the list.
By "special feature", I mean something about the man-machine
interface, the physical environment it can operate in, its ability to
function as a mobile phone - anything that makes it special.
I am NOT interested in things like operating systems, processors and
RAM.
By the end of the list, when the special features are exhausted, I
would like things like wearables, very small laptops and gizmos that
haven't really entered the market yet to be included.
For each PDA on the list I want this information:

Name of product.
Picture can be found at (...exact web site)
Special feature (short description)

Each product on the list should have at least one unique special
feature.
Please don't ask for clarification.

Thanks, Paul Swot

Hi paul_swot-ga,

Since you asked researchers to refrain from asking for clarification,
it may cause a slight difficulty in answering your question. For
example, we do not know which market you are looking to apply the
information to - European, Australian, US, etc. Although many of the
devices are the same, there are a few that may not be available in
some geographical areas, or may be under a different name. Clearing
this up may save researchers, and you, some time in looking at
products that aren't suited to your needs.
Thanks!
Cobrien-ga