Another point...
You can watch the simulated current status of Curiosity on NASA/JPL's amazing Java-based app called "Eyes on the Solar System" (Windows or Mac only):
http://eyes.nasa.gov/
Click on the "Curiosity" feature. After the data loads, it will show the current distance, velocity, time to touchdown etc of Curiosity. You could also advance the time to just before Curiosity's entry: click on "Preview" mode and change the date/time to 6 August 2012 at 0500UTC and click on "Submit". If you're impatient, change the time to 0511UTC and watch the entire landing process from any angle/zoom setting (i.e. see the approaching surface of Mars from Curiosity's viewpoint).
After you've finished with the Curiosity feature, click to close the "MSL" (Curiosity) feature and explore the rest of the Solar System (planets, moons of planets, some asteroids and comets (choose by "Destination"), sunlight, space probes etc) as it is right now. For example, you could pan around the Solar System and see where Halley's Comet and Comet Hale-Bopp are now or at some other time. Or go to Jupiter and watch it's Galilean Moons orbit around it at an increased rate, whilst Jupiter itself rotates through night and day. Amazing...