Short answer: No.
Longer answer: Gary Weber, who presented at Buddhist Geeks, says that he has been without self referential thought for fifteen years. Several experienced practitioners who post on the Internet boards make the same claim. It certainly seems to be a possibility. However, for this practitioner at this time that is not the aim. The aim is to increase flexibility–not be stuck in the I voice–with the view that this additional flexibility can reduce unnecessary and useless suffering for self and others.
Working with and modifying the flow of the structure of subjective experience reveals in real time that there is no permanent ‘thing’ called a self. But there are mental processes that create that experience…and they can be changed. The processes are impermanent…the body will die…but they are persistent and also subject to modification.