I bought the Editor upgrade the other day, and haven't had a chance to record anything other than drums since then, but I DO have one 6-string bass track (sort of classical in nature) that I tested it on, and it didn't work very well... BUT, I don't really blame the editor for that, since most tuners can barely even detect the pitch of the lower strings...
 
So with that being said, I really wanted to dig into the editor, and just see if I can get familiar with it, so I loaded the song "Uncle Tom's Cabin" from Warrant, because I remembered it had an interesting acoustic guitar intro that I always thought was cool.  So I focused on that, started tweaking notes, and practically wrote a brand new song, just by stealing their guitar part and swapping pitches of individual notes.  (I'm not actually going to use this for anything) but my point is... THAT DNA DETECTION STUFF IS RIDICULOUS!
 
I'm curious if any of you have any songs that come to mind, that are primarily "one acoustic guitar" or something along those lines, that you think would be fun to just tweak & mess around with inside Melodyne Editor.  I'm personally all for recording as many instruments as humanly possible with actual microphones, and only using keyboard samples and stuff for creative filler content or whatever... BUT... For a rap producer, or someone that "samples" other people's music (like Kanye or whatever) it seems like Melodyne Editor would be one of the most magical tools ever created for ripping off other people's music, and making it your own. 
 
But yeah... To be honest, I'm kind of shocked that the DNA editor works.  I really didn't think it was possible (without sounding distorted & robotic).
 
EDIT:  Here is a link to the MP3 of my reworked intro to Uncle Tom's Cabin by Warrant... Completely done manually inside of Melodyne (from just importing the song, and hacking away at it's DNA)...
http://www.shadowmafia.com/MP3/UncleTomCabinRework.mp3

How about the intro to Stairway to Heaven?

When the Children Cry - White Lion
 
The intro is fingerpicked acoustic guitar.  Could be real interesting to move those notes around.

I just tried to post a link to my reworked version of "Uncle Tom's Cabin" by Warrant, but apparently I can't post links on here... Do I have to hit a certain number of posts or something before I'm allowed to post links?  I really thought it was a worthwhile demonstration for Melodyne Editor.

It's 25 posts before you can post links I believe. You are nearly there ;-)

I tried to fix some bad notes on a bass vocal in a quartet I recorded a while back.  I had the same experience.  There were so many harmonic notes that it was virtually impossible to tune that vocal track.  But the guy sings really low...and those notes just would not register correctly.
 
Any other vocal track I've worked on has had very good results...as well as guitar tracks and fixing wrong notes.

Check this out:  http://www.youtube.com/watch?v=mWZP_A7-w4A
 
There's a few of these on Youtube.

Ha, that Let It Be sounds kind of bad... But it's still awesome software none-the-less... I gave up on my Uncle Tom's Cabin remake, once the vocals kicked in, because stuff just got weird & too hard to edit cleanly.  (I'm assuming the same happened with that Let It Be song)...

@Etmos:  I'd love to hear your "Uncle Tom's Cabin" effort.  You might be able to get around the link issue by giving it to us in a format like this:
 
uncle_toms_cabin dot mp3 at soundcloud dot com, or somesuch.

I pulled in a couple of classical string quartets -because they are limited instruments with distinct timbres - and dragged the audio down to a midi track running into garritan and kontakt and was amazed by how close the translation got without any fiddling.