As fantastic as it is, and I love the Flickr plugin (being new to Flickr this was what convinced me) but although they look the same, there are a couple of differences (that or I've not found them yet). One of the big issues I've found is that you can't filter the results by ranking, here are two screenshots, the first from Windows Photo Gallery:
And Windows Live Photo Gallery:
So where has the "Ratings" tab gone I wonder.
The other thing that I've not yet worked out is how to flag photos as "Private" and be able to hide them -perhaps that's not possible.
Another thing that would be nice is if it remembered when you had uploaded a photo to Flickr
and stopped it re-uploading.