Few Clarifications Oracle Developer Suite 10g.

As I am newbie to Oracle technology, would like to know few below clarification.
Your help is much appreciated.

What purpose of using Oracle developer suite10g software?
Is this higher version for the D2k 6i ?
Is this just development tool to develop the forms and those should be deployed at Oracle application server only?

Can we deploy these forms locally without apps server (user PC)?  
If we deploy locally(User PC, no apps server), at run should this forms should need run time from browser?
What are advantages of this suite over 6i version?

Without the help of the application sever is there any way we can deploy this suite10g forms and make available to all the user who want to accessing the application using browser/webOR- it is mandate that should we use Oracle Apps server.