I'm still waiting for the final volume of that. Not due out in hardback (and I generally buy paperbacks - less shelf space taken up, not to mention cover price) until October this year.
Edit: oh hell! It's apparently the last two volumes - The Last Chronicles of Thomas Covenant is a quadrilogy... October 2010 and sometime in 2013. I hope I live long enough.
Yeah, it's a shame how slow he's been going as of late.
I was tentative at best, when I heard of the Last Chronicles, and his style has changed [for the worse, IMO], but I found that if I stuck with it, it was good.
Of course, I'd be quite happy with his now slow writing if I found out he was writing more Gap Series books....
That stuff was primo SF.