HOLY CRAP FOLKS
Check nasa.gov/mars for all the shiny technical stuff! Seriously, it's super rad!
XKCD did an awesome strip today about it, including a URL for a torrent of the first images if you'd like to download them. I also recommend reading the XKCD strip about the previous Mars rover, Spirit.
If you don't understand why this is so exciting, you should read this Cracked article, which will explain (with jokes!): http://www.cracked.com/blog/5-reasons-you-should-be-excited-about-mars-today/
If you're already excited about this (and you should be, because OMG WE JUST PUT A SCIENCE ROBOT ON MARS SERIOUSLY Y'ALL), and if you want to see more stuff like it, visit http://penny4nasa.org/ and press your congresscritters to increase NASA's budget.
PLANETARY EXPLORATION YOU GUYS COME ON