Open Source Training Link - Not Working

Hi

I have read that OST is very good for beginners like me.. but I am not able to go through it Its saying : "the video is currently not available" (www.ostraining.com/blog/joomla/mobile-joomla-tutorial/). Is there any other good start up tutorial on MJ ??

Video on OST works well. Anyway, we are not affiliated to OST.

Ok.. but may i know if there is any other good start up tutorial on MJ ??