I swear they got Maladomini and Malbloge backwards, but other than that it looks like it will be at least somewhat compatible with Planescape; which is good if, like me, you intend to not use the new cosmology, but would still like some kind of support.
Also, the Devils are listed as "Evil" which means that this is probably correct and the Alignments are now Lawful Good -- Good -- Unaligned -- Evil -- Chaotic Evil
Remember, though, that alignments are suposed to have very little mechanical effect in 4th ed, so this would be a snap to change back. It's just amusing.
If they threw out Chaotic Good and Lawful Evil, I'm boycotting 4E. I am SICK of the whole "Lawful is good and Chaotic is bad" mentality. ¬_¬