Congrats.
What was the issue? I didn't really have much of an issue. Aside from bad linux intel video drivers for my sandybridge. :/
I wrote some instructions for someone on reddit awhile ago. This might help anyone else:
use ubuntu software center to install openjdk-7-jre 7
~$ sudo update-alternatives --config java Then select openjdk 7
Right click on your minecraft.jar file and hit Properties > OpenJDK 7 > Set as Default or run this script to launch:
http://pastebin.com/titPFG0X
you might also have to download lwjgl-2.8.2.zip
http://lwjgl.org/download.php, extract and copy /lwjgl-2.8.2/native/linux/ contents to /usr/lib/jni
Also it's a good idea to replace your /.minecraft/bin/natives with these same files. Extract the contents of the zip /lwjgl-2.8.2/jar/ to your /.minecraft/bin/ directory. It should work fine and you'll be up to date.
You might need to reboot after this before minecraft will work.