Just saw in TechCrunch that Google have enhanced some of the Google Doc  features which have improved Google Forms survey capabilities.

 Just last week I wrote a quick tutorial on how to build a online survey using ‘Google Forms’.

The key changes that Google have made are:

• Introduction of grid question type - while the type of questions offered are still limited, having another to choose form is very handy.
• Improved summary charts
• Bi-directional Language Support- this means that questions can now appear right-to-left – great for multiple languages.
• Sign-in to view form- this means that you can potentially secure your survey- great for sensitive type surveys
• Pre-populate a form with parameters – gives you the ability to pre-populate fields via form URL

While the changes are a definite improvement, as I have said before, I would still hesitate in using Google Forms  for anything but  data collection or internal surveying requirements.