Paul Smith made an interesting comparison on his blog. He compared the new iOS 4 (formerly known as iPhone OS) with the not yet released Windows Phone 7 and his conclusion was clear: “iPhone 4 can’t keep up, looks dated compared to WP7″. He did his comparison by looking at the Associated Press app on both platforms. The developer(s) of both versions designed each app to fit the look of the two OS’s. The look and feel of Windows Phone 7 was obviously superior, making — as Smith noted — the iPhone UI look outdated. To read the full interview, click on the source link underneath.
If you however decide not to read the article, make sure you watch this video of the gorgeous Associated Press app UI:

wow I want a windows phone