Well, its always been good, but it's just got a whole deal better ! Previously, you've been able to record a new ride, check out feeds from your previous rides (not friends rides though), edit your profile and adjust settings.
From the screenprint to the right, you can see they've just added a new 'Explore' function which is one thing it has been missing. It's just like having your laptop in your pocket now - in that you can check out which Segments there are in the local area. Brilliant !!!! And all for free. Unbelievable.