Yes this is a Nokia blog but damn if I didn’t find myself shaking my head in complete agreement with what Kathy Sierra had to say.
She doesn’t talk about the technology, the competition, this is purely a piece on UI. Something I think we all can agree on.
Usually at this point in my post I would copy and paste a small snippet, in this case however I recommend you read the whole thing from top to bottom.
Source: Creating Passionate Users