Version: 4.2.0 (using KDE 4.2.0)
Installed from: Ubuntu Packages
Allow creating new tab with "New Connection". The only way to get a get a new connection is to use the Address bar which takes up space.
Allow editing properties of connection by double click on tab (edit name displayed in tab, or connection quality)
Allow closing new tabs from right click menu on current tab, this way you can remove the X icon to close the tab
Remember the setting that were selected the last time and apply them for a new session.
I just realized that you may want this broken out into separate bugs. Let me know if this is the case and I will do so.
It would be nice if you could split them into different reports :)
About the last one: do you think about remembering "global" settings for each host? All individual settings for a host are already saved.
*** This bug has been marked as a duplicate of bug 184339 ***