One of the most beautiful aspects of living this times is that most
of the walls have come down.
The wall that existed between Unix and MS-Windows has, greatly,
fallen, so, when writing a program we must consider Unix and MSW
users. However, with the huge number of widget-toolkits promising
portability and speed in most of the operating systems, I find it hard
to decide which of the C/C++ widget-toolkits to use.
So, I would like to ask everyone what Widget Tool Kit you recommend
that will not only make my programs portable, but that will also
increase my marketability as a programmer/developer.

Thank you in advance