Last week in Krakow, Poland, one of the greatest events gathering Google technologies enthusiasts took place. The event in question is, of course, Google Developer Days Europe - a conference organized to showcase the hottest topics now in Google. Attendants could hear about the latest mobile, web, and Cloud features during 33 sessions, take part in 16 hands-on workshops, talk to Google Experts, and of course meet a lot of like-minded people.