Yes it's true the apps you mentioned have a unique UI but they don't work reliably, as for example the Facebook and Beez app, I don't use them because they work

Yes it's true the apps you mentioned have a unique UI but they don't work reliably, as for example the Facebook and Beez app, I don't use them because they work so bad. Concerning the Foodspotting app I think this is just the boring UI that I was talking about; how can you put a photo as a background for an app? This really needs to get a step further - well working apps and at the same time well made UI. The only app on wp7 that i've seen combining both is the Sports Tracker which is not my taste of design but at least it has a UI design.