Sprint's Dan Hesse told us point-blank back in July that he was penning a "great story around 4G" for this fall, and it looks as if October 7th will be the date that it "all becomes clear." We just received an invitation to quite the atypical event -- a "strategy update" for the press to cover in New York City. All we're told is that presentations by senior management will be on tap, with a sure-to-be-lively Q&A session to follow. 'Course, this may all be a ploy to waste our precious time on a precious Friday in autumn, but something tells us Sprint ain't exactly in a position to be b