Serialized novels? Looking for feedback

The good news is, since the beginning of January I've gone from being 1/3 complete on Insurgent to 2/3rd complete… nearly 30,000 words written in the last 5 days.  It's exciting to be moving along this quickly, and now there is no question that I'll have the first draft completed in the next few months.

I've been giving a lot of thought to an idea which has floated in the back of my mind for some months. Insurgent breaks down into roughly three discrete parts.  Would it make sense to proceed now (or in the very near future) with publishing the first third as an ebook, releasing it in three separate parts on the Kindle or other formats?  Then, when its all complete, wrap it up in one volume for hardcover or paperback?

I'm looking for feedback from the many folks who have asked me about the book over the last couple years. Would you want to see the story in serialized format, knowing that it will likely be the end of 2011 before the final section is complete?

The pros for me are obvious. I can get feedback now on the story, as well as some small bit of income which would help pay the bills, always an important consideration.  The cons, of course, are also obvious… if I hit something important in the story while working on the final third, that should have been in the beginning, it will be too late without going back and changing the originally released episode.

Okay, there it is. Let me know what you think!