> I am really new to cross platform programming and just beggining to discover it's "joys".
At least you're starting at the right place :-)
> Next steps: find IDE
Eclipse/CDT may be a good choice, but I could not wean myself from Visual Studio, so I have somewhat exotic approach to non-Windows development - I keep the code on a shared Linux or Solaris drive, edit with VS, use two monitors with [url=http://synergy2.sourceforge.net/|Synergy] and debug with gdb/http://sources.redhat.com/insight/|Insight] or dbx/[http://www.gnu.org/software/ddd/]DDD[/url
and GUI library (real pain)
Poco::WebWidgets should be released in 1.4 (I hope). If you need thick native GUI, we'd really like to see it in POCO but so far only [url=http://pocoproject.org/poco/wiki/tiki-view_forum_thread.php?comments_parentId=910&topics_offset=4&forumId=3|ideas] have been tossed around. After much research, my favorite wrapping candidate is http://www.tecgraf.puc-rio.br/iup/]IUP[/url