I see no evidence that the harmonizer is any different from the 900 series. It's still only 3 voices, and not 4, like the 4x.
Has anyone read/heard anything different?

It is Ugly. The 700 looks better with more black. Of course not critical...when is Tony M selling his 900?

Uncle Dave has one of his mint KORG Pa900 for sale asap...hurry

http://www.synthzone.com/forum/ubbthreads.php/topics/436804/PA900_-_mint_-_anyone?#Post436804

Features looks great, still I wish Korg will incorporate forward-facing speakers for smaller, intimate gigs similar to Casio's MX

not anytime soon ...
I'm not a big change guy, sparky ... married to the same woman for almost 54 years ... in that time I've had 3 different houses -the current one (33 years) due to a job move out of state ... I've had only 4 keyboards since 1990 ... as long as it works I will stick with it ...
And RED ??? I know it's a color UD can't resist, but I don't know about that ...

Has upgrading your SV-1 to the Grandstage crossed your mind yet?

The grandstage is a huge upgrade... from the SV-1 for everything except the analogue tube..

It is NOT ugly!
My 900 is on the block .... need one?

Nope! Part of the attraction was the front panel interface and the lack of menu. I like that retro, funky, odd shape too. The Grandstage doesn't interest me.

ditto