I've been running it for a bit myself, it definately uses some WINE on the backend but it still runs surprisingly well. It's pretty useful, for a glorified toy.
Well, nothing really. It is native though, as you don't need WINE to run it; it's just been compiled with WINE for Linux compatibility so it's not as native as it might be. But even so, it's a pretty nice & useful tool, and the search feature is awesome when you have a lot of pictures.
