V3 beta Mar-24-2014 available now

 From:  archetype (FABIENF)
6579.4 
The new Variable Radius options are great! Would be nice to be able to set a point to a radius of 0.00. When used with the linear option, it would provide a conical fillet, for example from one corner to the opposite of a cube. Currently the fillet is distorted unless a radius of > 0.00 is provided (0.01 works).

UPDATE: this fine works for circular fillets, I was using G1 with the example above.

Have a great vacation Michael!