Well, we have 7/8 Quarterfinalists already decided, and so far they look great IMO.
Dulko vs. Myskina
Gisela is having a fantastic tournament, and served very well against Kuznetsova in the last round. Nastya had an injury scare? against Asagoe (I didn't see the match), but if that doesn't hamper her too much I see her making it through to the Semifinals.
Pennetta vs. Clijsters
Wow, two walkovers to reach the Quarterfinal. I see Kim taking this in two fairly close sets, unless she has another hiccup like against Razzano. Kim 6-4 6-3.
Vaidisova vs. Henin-Hardenne/Zheng
I haven't seen Nicole play yet this week, but she looks to be in great form, and she could definately give Justine a stiff test. Depending on how Juju gets through Zheng, I see her moving through, possibly in three sets.
Petrova vs. Mauresmo
Nadia looked good against Sesil, but I think Mauresmo will be too solid for her and move through. Nadia is very streaky though, and if she keeps coming to net and punishes Momo's high balls, she could move through too.
Great result for Tourney organizers though, good luck to all 9