As speculation turns to iPhone 5 comes news that Research In Motion (RIM) is dead. Sure, this might sound harsh but the company’s move to replace its leadership seems unlikely to bring it back from the brink. Apple [AAPL] has unleashed forces RIM has been unable to match.

[ABOVE: Focusing on end users is key to smartphone popularity.]
Apple’s iPhone is the top smartphone among mobile workers, coming in ahead of the struggling BlackBerry, according to a quarterly report.
The iPass Global Mobile Workforce Report defines a mobile employee as any worker who uses a mobile device (including laptops, smartphones, cellphones and tablets) to access networks for work purposes.
The iPhone now holds 45% of the smartphone market share among mobile workers, up from 31% a year earlier. Last year BlackBerry — which used to be the overwhelming favorite among professionals — held the No. 1 spot with 35% of market share.