+1 Agree that that gap is unfortunate. Pieces of the trail are being patched in but you still need to use surface streets in that gap. It gets ok north of that to Cementon. Then it gets just dreamy north of that. The D&L website has excellent info and is pretty current.

Last summer I took my dropped Trek 850 from Cementon north for 50 miles. Every sort of surface from smooth new pavement to "technical" single track (north of Whitehaven). Much of that stretch is surfaced with tailings from local coal and slate mining. Very hard and fast when it's dry. Glad to have those fatter tire's. Loved the variety though. The D&L is always a day trip for me so I've never paid attention to camping spots nor places for provisions.

BTW, at the 50.25 mile point I turned in the woods and headed back. A fine century day.

edit: I assume the stretch from Yardley to Easton is pretty nice too. I've not ridden that lately but we've had several years now without flooding on the Delaware. Flooding used to tear holes in the trail every year and make the trip difficult. We'll see what "the season" does this year.