ICANN has opened an area on its website to discuss their proposed new GTLD process. The public comment forum for the New gTLD Applicant Guidebook is divided in to 6 parts

The 6 doucments availiable for commnent are
Full Draft Applicant Guide book (.pdf)

Introduction to New gTLDs Application Process  (.pdf)
Evaluation Procedures  (.pdf)
Dispute Resolution ProceduresDispute Resolution Procedures (.pdf)
String Contention Procedures  (.pdf)
Transition to Delegation  (.pdf)
Application Terms and Conditions (.pdf)