What happens with Google Spain, today?

Something is changing at Google Spain. At 0:35 minutes I Browsed Google Spain and I found this:

There is a mixture of languages, between spanish, català, portuguese and others ....

Is google testing new tools for detecting users language, it is a simple error ,or is Google testing its personalized search?

At 0:46 minutes Google Spain is already right, what was happening? I think that Google Spain is testing some tool for detecting or redirect the user from google.com to his local google detecting the language used by the user.

Well, it seems to be that google is testing something with its domain address, now when we browse www.google.com, we are redirected to www.google.es, but in ower browser the url still points to www.google.com and in the main page appears "Ir a Google España"

Well, if anybody wants explain me what has happened? I will be thankful!

... yes, My Master!