I've found that a lot of things on Ubuntu are very easy to install but there are some trickery ones that if you don't know the procedure can be a pain to get up and running on a new installation. Here is a quick setup guide for getting SmartGit installed on a fresh Ubuntu installation.
- Install the Java Runtime Environment from here. http://apt.ubuntu.com/p/openjdk-7-jre
- Install Git with the command
sudo apt-get install git-core
- Install Mercurial with the command
sudo apt-get install mercurial meld
- Download and install SmartGit per their instructions on their site
That's all there is to it. Hope this helps both myself and anyone else looking for a quick guide to get SmartGit up and running.