As heresey as it might be to HN I can't wait until everyone in the world onboards onto one unified communication platform. Once (and if) lte and unlimited data becomes ubiquitous I look forward to be able to make phone calls, email, messages, video messaging, blogging etc all from one username and account. I want to hand someone my username and be done with it. Facebook is trying, but it's execution leaves much to be desired
I don't think this will ever happen. There are just far too many people, with far too many requirements.
For example, I would never use a centralized, proprietary platform for these services. Some folks don't care, but they may want it to work on <insert latest device fad here>. Even if it works on that device, it will likely need to comply with local regulations around the world, each with their own requirements.
If we (humans) can't even get a single, agree on unified service for something 'simple' like web search, what makes you think we'll ever converge on dozens of mediums/services/protocols?
So long as said account has not been banned for tripping some unknown algorithm, and have received the "this is the last communication on this matter" message. At which point in such a world where there is one, and only one, communication platform, do you even exist?