One of the big things available with Pangolin is Gnome 3.4. I gave it a quick try and thought it was HORRIBLE. Never again! I've been using xfce4 for a while now, and it's lean and lightweight and not trying to be flashy and glitzy. I like the minimalist desktop xfce4 provides:
Version 2.8 of GIMP has gone RC (release candidate), and should be generally available soon. It has some nifty new features, including the most requested feature -- single window mode. I hadn't been able to compile GIMP 2.8 on older versions of Ubuntu Studio, but there is a package available for 12.04, so it was one of the first things I installed. Sadly, it still doesn't support 16-bit color.
Which brings me to the other bit of good news about Pangolin -- Krita 2.4 is directly available now! It's my favorite digital art tool, as I noted in the previous post. It can handle 16-bit color, as well as CMYK colorspace, and even has some vector tools (although I prefer to use Inkscape for that). Krita has quite a few projects for the Google Summer of Code, it should have some nifty new features soon, including infinite canvas (like MyPaint) and perspective drawing.
Do I know how to party on a Friday or what?