A young woman going by the name of "Snorkel" has been quietly speeding up the trail and could very well set a new womans unsupported speed record in the next few days.
She left Springer on April 15th and as of June 24th, 71 days later, was just about to enter Maine. Therefore, if she can summit before July 7th, she will have set a new record. (current record is apparently 85 days). I think she'll beat it by at least a few days. Pretty amazing.