Talk about dealing from a position of strength: Apple and Steve Jobs enter next week’s Worldwide Developers Conference as kings of the tech industry hill, makers of must-have consumer products and generators of must-read technosphere headlines. He strode onstage at this week’s D8 Conference to the opening notes from “Got To Get You Into My Life,” still looking understandably frail considering his health issues. However, the passion was still there as he argued with Mossberg over HTML5 vs. Flash and about writing “Thoughts on Flash.”