I've been here in HF for the better part of a week. A lot of this time has been spent in the ATC office or the Outfitter shop. Consequently I've met quite a few thru-hikers......tho fewer each day. The vast majority of folks has passed through town already, and while there are certainly folks still coming, they're starting to run out of time. (It takes most folks 80-90 days to get from here to Katahdin). It is, of course, perfectly possible to summit AFTER 15 October, but most folks try and avoid this; a lot of the folks I've met this week are talking about flipping, and several actually left for Maine from Harpers. Actually, this might be a bit pre-mature as one could STILL get to Katahdin by 15 October by averaging less than 13 miles per day, but I think some folks are concerned about maintaing this average as they get further North.
In terms of the rest of the trip, it takes most people
2-3 days to hike Maryland
15-18 for Pennsylvania
5-6 each for NJ and NY
3 for CT
6 for MA
10-12 for VT
12-13 for NH
22-26 for Maine
Throw in 4 or 5 zero, or really abbreviated days and you get between 80 and 90 days hiking time.
In that one can hike Southern New England quite late in the season, if it were up to me, I'd keep going for a few weeks, and flip, if necessary, in CT or MA, as I'd rather finish in Kent or Williamstown......I REALLY would rather get PA, NY, and NJ out of the way and not have them hanging over my head
after getting to Katahdin; on the other hand,these states are probably a lot more pleasant to hike thru in October than they are in July.
As far as numbers go, there seems to be a slight drop according to the folks at the ATC office, but it's not that significant; there are between 30 and 40 fewer thru-hikers reported in to HF as of 12 July as compared to that same date last year.
Final "completion" rates will most likely be about the same as last year, or perhaps a bit higher as the Spring was quite mild down South this year, meaning fewer early drop-outs. All in all, I think the 2007 final numbers will be very similar to last year's, i.e. there'll be a slight drop in reported numbers at Harpers, but the number of folks to report a complete hike at the end of the year will be very close to last year's figures, with a similar completion percentage.