I don't really see the value in that either. So until they can figure it out themselves what ChromeOS integrated with Android offers mores than just the Chrome browser for Android, then they should probably keep them separated.

It would entail throwing away Chrome OS and just using Android. After all, Android has a superset of the functionality.

That's not entirely true, but yes, that does seem to be the only sort of "integration" that makes any sense.

I think it has mostly been prompted by this: http://news.cnet.com/8301-30684_3-10402653-265.html

(convergence is different from integration, but I think convergence is what is meant in this context)