Google's Chart developer site says you can customize the ToolTip for the charts to support HTML tags and other such goodies. I am not sure this works for all charts as I was not able to get the Org Chart's tooltips to support HTML but I could have been doing something wrong.
****UPDATE**** This was confirmed by the nice folks at Google. HTML tooltips no workie with the Org Chart. Oh well.
However, I did get close enough to what I was looking for to post an update. Note: It can be a pain in the ass to write a script that writes another script in a different language and then passes command line syntax between them. Avoid if possible.
Now the when you hover over an event you get the entire log entry displayed on screen:
I got tired of uploading my scripts to this site SO I finally broke down and started using the GitHub account I created forever ago.
Look for more to come in the near future. I have a bunch of useful scripts laying around that I will post when I get the time to clean them up.
I am really digging the idea of visualizing the DFIR data in meaningful ways and I am trying figure out ways to display other relevant information. If any of you have any ideas, feel free to drop me a comment.