If Apple should fear anything from BlackBerry is that I'm hearing 13 year olds love this phone. They should defend the consumer market as a priority over expanding into the Business Market. I think Apple shot themselves in the foot with the last Iphone release as really not much changed and forcing people to buy new cables for like $30 or whatever is a ripp-off. The Z10, I believe, will gain market share.
Anyways competition is always good for the marketplace - Apple lovers should like to see BlackBerry come back as otherwise it's all Samsung. Blackberry invented the smart phone and the new QNX OS (BB 10) running in the Z10 is more secure and faster than Android or Apple's IOS. QNX is a revolutionary step for Smart Phones and will lead to further improvents to all manufacutures of phones. Go to QNX.com if interested in the new BlackBerry OS. BlackBerry owns QNX, by the way, also a Canadian company.