
unusual design
Tuned out it's not created by a drunken hand - it's created an unusual tool which makes a point not to limit itself to just straight lines:

http://eda.eremex.com/products/topor/competitiveadvantages/autorouting.html
http://en.wikipedia.org/wiki/TopoR
There is something about Lite edition which might work for us. My own plan is to figure out if they have command line handling - I would love to reduce the number of clicks in my workflow.