I often like to keep track of how fast my downloads and uploads are going. In emule when you roll your mouse over the tray icon it says:
Up: 5 Down: 7
so you don't have to bring up the window to see.
In Limewire all it says is: Limewire, running the Gnutella Network
What useless information!
Emule also shows running speeds on the status bar at the bottom of the program, which is very useful so that you don't have to skip back between the windows and do some arithmatic.
Could emule add a feature like this?
Even better, the lime could get darker and darker the faster your downloads are going, or it could have little green dots pile up like Emule Plus has.
Don't get me wrong, I like Limewire, so much I bought pro, but I think it could learn a few things from Emule =)