[lnanek2]

Can't actually think of a case where I would want or need this. Even my Chrome tabs followed me around is kind of annoying lately, since I lookup different things different places without much interest in them elsewhere. E.g. I'm not going to read HN on my phone.

[Spearchucker]

Indeed. It's a nice proof of concept and immediately gets me thinking how I'd do it. However the Evernote demo makes it look like a solution waiting for a problem. I imagine there is a compelling use case - will be interested to see it when it appears.