Google Now is the other key feature of Jelly Bean. It's best described as a contextual aware assistant. Swipe up and it will present you with a range of "cards" that present information. Above is the weather card, which automatically adjusts to your current location. There's also cards for traffic, flights, sports, appointments, places, transit, translation, currency, and time back home, though not all of them work in Australia just yet.
The service works with your Google search history to organise the information it provides to you. For example if you've just searched for pizza restaurants in North Sydney, the next time you open Google Now it will present you with a list of places. Google says the service will naturally improve over time as it learns your daily locations and habits.