Overall, I think this is a good idea. I do think the reworking and barriers around it make Google an incrementally more insular place to work in, which is not what I want to see, but it's certainly true that the general direction of an integrated, cross-product chat client/tech for Google is overdue.
Reshared post from +Doug Dunfee
Google expected to unify chat under the name Babble | Geek Pick | Geek.com
Mar. 18, 2013 – Google’s quest to continue unifying their products is about to enter its next phase. According to multiple sources, the company’s next step includes

I'll be happy if it allows my girlfriend to properly receive text messages through Google voice (like we paid $20 to). Everything else is just gravy to me.
I used to use Meebo that was run in a browser and you could connect any other chat client to it. Google bought it recently and stopped offering the chat client…I was hoping they would bring it back as something else. Looks like they may.