During yesterday's Friday (07/23/2010) was an error while updating ideaIC from git:
dan@netbook:~/projects/idea-community(develop)$ git fetch
fatal: read error: Connection reset by peer
but, the site git.jetbrains.org continues to work.
I found the same problem: http://devnet.jetbrains.net/message/5247084#5247084
The guys from the Jetbrains, to repair git please :-)