- Nick highlighting should not be case-sensitive.
It picks up "Wren" but not "wren" - Those little pop-out buttons in the lower-right corners of each Ribbon group should be removed if they do nothing.
- Integration with Windows 7 Jump Lists?
not really necessary, but would be cool. maybe once W7 is finally released. - Something frivolous, but the option to have a full Aero Glass background (like Windows Sidebar Gadgets Gallery's) would be awesome
I'll keep updating this list as I notice other things.
Here's looking forward to Neebly eventually becoming the best IRC client for Windows!