Hi WebmaisterPro friends,
There are great news that Joomla v will be available at the end of September, but even more interesting is that v3 is based on Bootstrap. Actually at WebmaisterPro, we've already made the transition and currently we are using Bootstrap template to ease the transition to move to new Joomla version.
Right now, Joomla v3 Alpha-2 is available for download the the official website, this isn't a production release, but you can test it on your localhost:https://developer.joomla.org/news/536-joomla-3-0-alpha-2-released
Wish everybody easy transition to new Joomla!