specifically to ensure that Firefox/Fennec/Home all sync bookmarks with unicode-in-all-fields correctly (at least: url, title, tags).
We shouldn't constrain this to just bookmarks, history and tabs can have unicode in their data as well. Crossweave doesn't test Firefox Home.
Whether or not this is still relevant, it's clearly not :)
I think this would still valuable to have, so reopening to get it back on our radar. I'm sorry we didn't get to this sooner. Sync didn't have a dedicated team for quite some time, but we formed one about two years ago, and have been regularly triaging bugs since. We're almost through January 2013, but there's still a long tail of untriaged bugs from 2010 to 2012.