It is certainly an interesting development, since Munro would have been an obvious frontrunner. Her new book -- Too Much Happiness -- is excellent (I've reviewed it on my blog and from what I can tell it has got excellent UK reviews).
Almost as interesting, this year's Giller jury is truly international -- Alistair MacLeod (Canadian story writer and novelist), Victoria Glendenning (UK novelist and biographer) and Russell Banks (upstate New York novelist).
Atwood's The Year of the Flood would be the remaining "big" book -- it missed the Booker longlist and I suspect the jury makeup doesn't point to a love of speculative fiction (and they won't be carrying the Canadian "icon" baggage). She's promoting it with "theatre" performances in churches and cathedrals (a ploy that is not to my taste), with the first due up at the Edinburgh Book Festival this week. There has been heavy security here on advance copies of the book -- I know only that it is a prequel to Oryx and Crake.
Anne Michaels' The Winter Vault is another "name" -- again, lukewarm reviews and no Booker (or Orange Prize) longlisting. Bonnie Burnard is the other previous winner (SUDDENLY -- all in caps, not a good sign) but it is not out until late September and I have seen no early reviews.
Two Newfoundland novels have attracted attention. Lisa Moore's February is set around the Ocean Ranger oil rig disaster -- I found it wanting, but Moore's style tends to impress juries more than it does me. Michael Crummey's Galore is, according to the author and reviews, inspired by One Hundred Years of Solitude and explores Newfoundland mythology -- it's next up on my list once I finish the Booker list.
There's a French-to-English translation, Dany Laferriere's Heading South, set in Duvalier Haiti, that has attracted pre-publication attention. The French version has already been made into a movie in the 1980s -- How to Make Love to a Negro -- he says he has virtually rewritten the book (although again in French) for this translation.
I'm not certain whether my favorite read so far -- Robert Arthur Alexie's Porcupines and China Dolls -- qualifies. It was first published in 2002 and the publisher went broke the next week, so it disappeared from sight. The version I read had a 2008 copyright -- I don't know if there was enough rewriting to qualify this version as a new work.
All of which points to the likelihood of a number of longlist titles from first novelists and smaller publishing houses. The economic crunch has put my normal sources of reviews on these out of business so I am out of touch on this front.
I've previously included on this thread a link to my Shadow Giller post on my blog and won't repeat it. For those who don't know, bookermt was the Shadow "international" juror last year (Colm Toibin was on the "real" jury). This year's international juror is Trevor Berrett, a regular visitor to these forums (although this year he is not trying to read the whole longlist -- does promise shortlist thoughts).
Sorry about the length of the post. I promise updates if I see, hear or read promising titles. I don't know how many of these titles are available in the UK (Munro, Atwood and Michaels certainly are).