Microsoft CEO Satya Nadella's announcement last week didn't exactly shake up the mobile industry as much as it shook confidence in its mobile, particularly smartphone, strategy or lack thereof. A lot of questions were raised and theories cooked up. Since then, Microsoft has reiterated in different corners that it is still committed to smartphones. How exactly, it hasn't completely explained. ZDNet's Mary Jo Foley was able to get some alone time with Nadella after he delivered his Worldwide Partners Conference keynote and asked the hard questions that many of us probably want to ask.