For sensible commentary about the core mission of Blink and the history leading up to the fork, there’s Alex Russell’s post from Google’s perspective, and Maciej Stachowiak’s comments from Apple’s perspective.
For more detail, there’s the threads between Google (Adam Barth and co.) and Apple (Darin Adler and co.) folks on the WebKit dev mailing lists.
I’m also excited to see what Apple is working on, but we’ll need to be patient there as Apple’s style is “show, don’t tell”.
Maciej says it best: “I do not consider Blink to be a hostile fork. I wish the Blink developers good luck & godspeed.”