Google Earth just got a bump to Version 6.2, which brings a number of new improvements. Probably the biggest is the addition of the Earth Gallery, which highlights such things as new imagery updates, real-time earthquakes, real-time flights and other cool layers. There's also an updated touring mode that lets you launch from the gallery or inside balloons. Sharing is updated so you can push through Google+ (or other social networks), and there are new zoom and pinch gestures, along with bugfixes.
We've got download links after the break if you need 'em.