Install prezi desktop on linux ubuntu 12.04

Prezi is a nice tool to make presentations. However, its desktop application is required to draw your prezis offline. The installation of this tool relies on Adobe Air, which has been discontinued for linux.
However you can still use an older version with some minor tweaks.

1. Get adobe Air, latest linux version is 2.6. I got it from Adobe Air's archive: http://helpx.adobe.com/air/kb/archived-air-sdk-version.html
2. As Adobe Air is an old application, it won't detect gnome keyring at once: you have to make some symbolic links: 
1. sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0 /usr/lib/libgnome-keyring.so.0
2. sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0.2.0 /usr/lib/libgnome-keyring.so.0.2.0
3. Info for more platforms is here: http://www.linuxnoveles.com/2012/instalar-adobe-flash-reader-air-en-ubuntu-12-04-pangolin/
3. Install Adobe Air with root permissions
4. The prezi installer from their web page won't work, so you have to download the .air file. i got mine from here: http://cdn01.prezi.com/prezi/desktop/PreziDesktop_3.042.air. More information here: http://prezi.com/learn/prezi-desktop/
5. Finally install Prezi desktop: sudo Adobe\ AIR\ Application\ Installer /home/juan/Descargas/PreziDesktop_3.042.air (absolute path of .air file required)