Today some English in the Post :-)
Yesterday when I logged into the new and the Old Azure Portal I saw a new button 'Open In Visual Studio' under the SQL Database tab:
I asked myself - is it related to the new announcement about open source and cross platform of .NET.
So I clicked on the button in both the new and the old portal. I was asked to install update 4 for my VS 2013. After this was installed, I again clicked on the new button - the world did not blow up. It appears that it just opens the "SQL Server Object Explorer" with a regular connection to the DB.
I do not think its worthwhile to work with this but then I had a brainwave that now I can do comparisons with my code or with other DBs very quickly.
So for now its not so important feature, lets see what they will do with it next time.