Listening to Maine Public Radio on 90.1 while driving home, signal choppy till the driveway when another station took over. Turns out to have been Native American Calling, which on that frequency would seem to be KILI (kee-lee) radio in Porcupine, South Dakota. Station guide suggests that's not the right time for NAC broadcast, but Harlan was taking calls at an originating station in New Mexico and there's certainly nothing like that on MPR.
Web search got me to the TVFM Skip Log!, where E skip was delivering decent DX to listeners and watchers, though not much reported on the southern Maine to South Dakota path (10 July @ 2330Z).
Wish I had a 6-meter rig.
UPDATE 20080814: A year later I was able to pick up a TenTec 1208 transverter for a decent price and it works well with my K1. For the past month I've been listening to 50 MHz almost daily and timed it right for a few openings. Three and a half decades hamming and I finally have some 6-meter QSOs in the log!