Wow, I had exactly the opposite experience. Tons of thoughts popped into mind as I watched.

If my brain had a replay button, it would say:

* Ok, what if I have multiple accounts? Ahh, nice.

* Hmm it would be cool if it worked like LastPass, where you get great security and only one password to remem... ha, nice, it's very similar!

* Email verification? ....yep, check.

* Can you lock the browser so that nobody can just use your browser to sign in? (No direct answer, but I assume so. Or will be this way soon.)

* Open source? Great.

I didn't really expect any technical answers. But they did mention the blog and there's got to be some good posts coming soon. Subscribed.