While it isn't as solidly constructed as its predecessor -- seams where body panels met weren't uniform, and the power button had shallower travel than we'd like -- the B still strikes us as a sturdy device, and, of course, it's not built for consumer consumption anyway.

ENGADGET: BlackBerry's new Dev Alpha B handset runs BB10, we go hands-on

It also hopes to use BLYS as a homing device to deliver tiny doses of radiation directly to cancerous tumors that hit the B-cells, such as lymphoma.

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