> It's not hard to understand that they are simply unifying all their services and making everything easier and more consistent.
Basically, everything is a google account that you pay for with all the services and a domain administrator.
The Gmail.com is just one domain were the administrator gives account for free (and display ads) but that's it.
It's a big cleaning because there was some huge mess there.
Now, that's also a lesson that you never count on a free provider and always be ready to switch.