One very handy feature left out of that review is the ability to"attach" a sticky to a particular window or window class. This allows you to have stickies that only appear when a particular web page, document or whatever is opened.
It is my hope that this unified design is in preparation for domain wide user selectable styles. If they make all of their sites conform to a standard then it should make it easier to develop styles to work through all sites. This is totally wishful thinking and I have not bothered to check the source of any of the redesigns.
I haven't gotten a chance to try this out yet but it looks very interesting. If the suggestion box is still open I'll probably drop a few ideas/requests here.