title: Choose between PhoneGap & Titanium
body: <p>So, I have to develop a mobile application and
  I want to use Phonegap or Titanium but I need advice about those technologies...</p>
  
  <p>Are they for free?
  What are their limitations?</p>
  
  <p>I don't really understand them and I want to have more information before I start coding...</p>
  
  <p>Thanks!</p>