Right, umm... maybe Apple should've thought of that before they made the Adobe's proprietary PDF format a cornerstone of OS X.
Yes, which is of absolutely zero relevance in this case. Has Steve's IQ suddenly dropped below 100, or was he just hoping that the WSJ audience was borderline retarded?
Since Flash is a popular software-based platform, not an impopular and outdated data port standard, here's a more apt comparison for you Steve:
You've been trying day and night for 25 years to retire this platform called Windows, insisting that Apple's alternative is vastly superior. You've done this by hammering home the message through innumerable TV ads, print ads, keynotes, the works. For 25 years! The result? Windows still holds a 90% marketshare worldwide. At this rate, it will take another 200+ years to erase Windows from the map. And that, Steve, is how "easily" you'll be able to kill Flash.
The "battery hog" argument is even more ridiculous. It's not Flash itself that uses the power, it's the goddamn content. CPU/GPU intensive content is a power hog. You should know this from, you know, iPhone/iPod games. Do you REALLY annoying banners and intros will go away only because you replace Flash with HTML5, Steve? Do you really think it won't drain the battery just as quickly?