If you drag a soft synth into the clip area to create a new track in Live 4 it comes up as "MIDI".
I'm hoping in Live 5 it comes up with the name of the soft synth.
Reason I want this is, when adding new soft synths during a performance, the extra step of ctrl-E and naming the track is too time-consuming, but once I've added a few it's sometimes hard to remember which track is which.