Popups from applications will not honor the screen size. Therefore if you have something popup that extends to the sides or extends down will not be accessible. The same issue happens if you have a dropdown it extends out to the side and out of the screen. I've attached a screenshot to show this.

If you have an ssh-agent up and running it is very irritating to add the ssh-key "again" if you have done before during the startup using ssh-askpass.

I would use the same ssh-key to access some remote systems as I have on my system (NFS mounted homedirectory). So the key is already loaded and I guess we could make use of the ssh-agent instead of saving the ssh-key in memory.

I am thinking along the lines of: ​http://twistedmatrix.com/documents/8.2.0/api/twisted.conch.ssh.agent.SSHAgentClient.html

I had an xterm, a "git gui" and a gvim connected via winswitch from a remote machine. After going away and coming back, only one of the sessions (xterm) could be resumed; new sessions (xterm again) could be started.

Here's a filtered strace on winswitch_server when trying a reconnect:

write(2, "/usr/lib/pymodules/python2.6/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display\n  warnings.warn(str(e), _gtk.Warning)\n", 130) = 130
write(2, "/usr/lib/xpra/xpra/xposix/gui.py:15: GtkWarning: IA__gdk_display_get_name: assertion `GDK_IS_DISPLAY (display)' failed\n  _display = gtk.gdk.get_display()\n", 154) = 154
write(2, "Traceback (most recent call last):\n", 35) = 35
write(2, "  File \"/usr/bin/xpra\", line 7, in <module>\n", 44) = 44
write(2, "    ", 4) = 4
write(2, "xpra.scripts.main.main(__file__, sys.argv)\n", 43) = 43
write(2, "  File \"/usr/lib/xpra/xpra/scripts/main.py\", line 232, in main\n", 63) = 63
write(2, "    ", 4) = 4
write(2, "run_client(parser, options, args, mode)\n", 40) = 40
write(2, "  File \"/usr/lib/xpra/xpra/scripts/main.py\", line 367, in run_client\n", 69) = 69
write(2, "    ", 4) = 4
write(2, "from xpra.client import XpraClient\n", 35) = 35
write(2, "  File \"/usr/lib/xpra/xpra/client.py\", line 25, in <module>\n", 60) = 60
write(2, "    ", 4) = 4
write(2, "from xpra.platform.gui import ClientExtras\n", 43) = 43
write(2, "  File \"/usr/lib/xpra/xpra/platform/gui.py\", line 16, in <module>\n", 66) = 66
write(2, "    ", 4) = 4
write(2, "from xpra.xposix.gui import *\n", 30) = 30
write(2, "  File \"/usr/lib/xpra/xpra/xposix/gui.py\", line 16, in <module>\n", 64) = 64
write(2, "    ", 4) = 4
write(2, "assert _display, \"cannot open the display with GTK, is DISPLAY set?\"\n", 69) = 69
write(2, "AssertionError", 14) = 14
write(2, ": ", 2) = 2
write(2, "cannot open the display with GTK, is DISPLAY set?", 49) = 49
write(2, "\n", 1) = 1