I'm French and finally the Palm Pre will be available in our country within few months.
I've read lots of things about the autonomy of Palm Pre, some tips to improve it, some other to replace the battery by a more powerfull.

I had an iPhone, now I have a HTC Hero, for me, they have approximately the same autonomy.

Could you tell me if the Palm Pre can have approximately the same autonomy (with 3G always on), and what I should do to have this autonomy ?