Here's part of the breakdown from my guess list:
Very Likely to Switch
Kyl (R-AZ)
Lott (R-MS)
McConnell (R-KY)
Craig (R-ID)
Gregg (R-NH)
Boxer (D-CA)
Bond (R-MO)
Murkowski (R-AK)
Cochran (R-MS)
Bingaman (D-NM)
Coleman (R-MN)
Likely to Switch
Collins (R-ME)
Snowe (R-ME)
Domenici (R-NM)
Stevens (R-AK)
Warner (R-VA)
Bennett (R-UT)
Burr (R-NC)
Could very well switch
Hatch (R-UT)
Toss-ups
Webb (D-VA)
Ensign (R-NV)
And here's the list of anti-cloture to pro-cloture switchers:
Bennett (R-UT)
Bingaman (D-NM)
Bond (R-MO)
Boxer (D-CA)
Brownback (R-KS) [didn't vote last time]
Burr (R-NC)
Coleman (R-MN)
Collins (R-ME)
Craig (R-ID)
Domenici (R-NM)
Ensign (R-NV)
Gregg (R-NH)
Kyl (R-AZ)
Lott (R-MS)
McConnell (R-KY)
Murkowski (R-AK)
Pryor (D-AR)
Snowe (R-ME)
Stevens (R-AK)
Warner (R-VA)
Webb (D-VA)
So there's a lot of overlap. I had Pryor as "Could Very Well Not Switch," so I was a little off with him, and I had Hatch as "Could Very Well Switch" (he eventually voted against cloture), so they were a little out of the order of my guess list. Also, I had Cochran as "Very Likely to Switch" because reports had him declaring in favor of cloture, but apparently he changed his mind (or leadership let him change his mind).
Bayh was a bit of a surprise to switch to be against cloture, but Stabenow's switch against cloture was a little more expected. Now, will both Bayh and Stabenow stay against cloture for ending debate on the bill?