If there is a need to retrieve the title by just passing the url to one of your applications this can be done with this tiny jQuery plugin I wrote. It uses yql to bypass the cors restriction and its really easy to use.
*Include getTitle.js in your html
*$(‘#box’).getTitle(‘www.google.com’); It fills element box with the google’s title
*At the moment is working only synchronously, which is lame 🙁
Get it from here