Tkinter & systray

[billie]

Hi all. I'd like to develop a GUI-based application the most portable
as possible, able to run in systray.
I think that, for portability reasons, Tkinter could be the best
choice, so I tried to google a little bit about it.
According to this :
http://mail.python.org/pipermail/python-list/2002-September/123257.html
...it seems that it's impossible (or better, it WAS impossible in
September 2002) handling this case by using Tkinter.
Four years later is there a way to make this happen?

Thanks in advance.