Earlier this year I worked on a project to include threading to comments in version 4.0.1 It hasn't been deployed yet, (our web group is overworked) but I'd like to submit it back to the roller project.
Linda Taylor USPTO/OCIO/AED/SD 600 Dulany Street MDW-06D18 Alexandria, VA 22314 572-272-5720 Roller used: http://www.uspto.gov/blog/
