After about 15 months, I consider this toy very … very! 
But, an heavy daily usage made standard battery very shorty;
in the beginning, it lasted 6+ hours (with bluetooth and 3G on); now it’s life is about less than 3 hour.
So, I looked for some tips& tricks post, just to try make me usage healthier.
I found old posts, of course; most of info are old or useless in my daily usage, but you may find something usefull, so please read Definitive guide to improving the battery life of your debranded WM5 i600, Mad scientist conducts exhaustive tests.
I haven’t had a single test, so please read it at your own risk.
