Followed you're link, but I can't read (page not found in) Russian.
EDIT: Remove the dot after shtml to correct your link.
Anyway, from what I've read about this phone elsewhere, I believe it's a logical evolution from k750i. Considering it's music capabilities i.e. I'm considering buying a k750i by August end when I go overseas. If W800 Walkman comes out by then, I might have a tough decision to make. The W800 with a 2Gb Memory Stick Duo is what I'm looking at.
I think the W800 has a standard 3.5mm audio plug. Which is great if you decide to plug in you own high quality headphones.
-Keith