Imagine if Jonathan Ives, the designer of the Mac and the iPhone, walked out of Apple one day before its world developer's conference? Well that's the kind of impact of the resignation today of Anssi Vanjoki, who has announced his departure one day before Nokia World, the company's major annual event. Vanjoki was widely seen as being the potential 'Steve Jobs" of Nokia - a product obsessive who could get things done. There's no sign he's left for another job and the short press release