Well here we are in mid 2010. The book remains to be inside process for being written. Six numerous years of writing a "partially completed" book. With two more books likely to come from then on! It is extremely frustrating to be a fan.
All that negativity aside, there is really a reasons why fans of his books gripe and vent yet still wait after a 4 year hiatus then a six year hiatus. The books are simply just that good.
I will provide him with his due, he will take time because he desires to only create an exceptional product.
More positive news is always that there is really a HBO miniseries, that is certainly forthcoming, determined by this series. With the quality of the books, and also the quality that HBO does using series, I expect it's going to be great. Perhaps the HBO leg breakers will hold his feet towards the fire in completing his novels.
I hope that MR. Martin will decrease his many side projects, convention attendances and book signings and just get towards the writing. This includes minimizing his involvement with all the HBO series. Trust it is in good hands, George. There will have only a lot more fans clamoring for his next book release following your series comes out. Get to it George, we have been waiting.