RE:Nice phone but...Greatvac,
Your perception of quality of the Z10 is spot on. I used iOS6 and I can tell you BB10 is superior.
Your gamble at buying stock at earnings was a reasonable one. I think your loss is only medium term. It takes time for people to end their phone contracts and save up enough money to buy a new phone. Apple's stock has collapsed, Samsung's sales are under pressure.
BB is doing just fine all things considered. Their good balance sheet can afford them plenty of time.
Because of the extreme quality of the Z10 and Q10 hardware and the robustness of the BB10 OS it is only a matter of time before BB starts regaining significant market share.
This is a growth stock, so don't sell at the first nice capital gain you get. Hold it long term, someday BB will start issueing a dividend.