Quite honestly, we can't imagine now as being an awesome, jovial time to be heading up any division of Sony Ericsson. Thus, we're not too awfully shocked to hear that Najmi Jarwala, President of Sony Ericsson USA and Head of Region North America (comprising the US and Canada markets), has decided to leave his corner office at the end of March in order to "pursue other career opportunities." The announcement comes just a weekend after SE proclaimed that its Q1 sales were down some 50