Yes I've installed peppermint 3 and its working very well.
It about 7 attempts to install, everything I tried ,from copying to a cd, then usb with unetbootin and usb creator, the install, at the peppermint welcome box, the box would disappear leaving just the circle going around and around and around.
This was with the iso downloaded from the peppermint home page, then I noticed the iso in your tutorial had a different number
3-20120722 from the home page
3-20121105 from the tutorial
when I tried the 3-20121105 it worked 1st time
all the drivers are there
I did the SeZo solution to getting vlc to work
Shockwave flash wasn't there so I followed your guide on the peppermint forum and that works fine,
So all in all, when I see that blood splattered screen, I get a warm glow and I am very pleased.
So a big thanks.