SCM: Meld tool for comparing versions, merging etc.

I was looking recently for a nice tool for comparing differences between versions on Linux (apart from plugins in Eclipse) and I found a tool called Meld. It is in the standard repo of Ubuntu and can be installed via the apt-get utility. It seems to be a pretty easy to use with a nice looking GUI - although I still have not found a way to compare branches ;)

If you are working on one branch you can compare the differences of the project by typing:

# meld .

in the project's root directory. One can also compare local copy of a file with the last commited version in the svn repo etc. Some samples are presented below:

Although I used meld only for comparing the svn, meld provides also support for other source control management systems like git, cvs etc.