ZDNet is reporting that global bank HSBC is considering adopting Apple’s iPhone as its standard staff mobile device, potentially dropping Research In Motion’s (RIM) BlackBerry. “We are actually reviewing iPhones from a HSBC Group perspective… and when I say that, I mean globally,” HSBC’s Australia and New Zealand CIO Brenton Hush told ZDNet.com.au. “A decision on a piece of hardware like that would potentially be deployed, conservatively, to 200,000 people… It’s a big decision, especially when you have an existing fleet out there… but it’s definitely something we are considering from a HSBC Group perspective.” Such a move would likely lead to one of the world’s largest iPhone orders and would be a blow to RIM. The latest version of the iPhone runs on 3G networks and supports Microsoft’s Exchange e-mail platform and corporate VPNs, marking Apple’s efforts to make it potentially more attractive to large enterprises. According to a July comScore survey, 70 percent of iPhone owners send and receive emails with the device.

Meanwhile, the Wall Street Journal reported late last week that Apple is working on a software fix for its new iPhone 3G to remedy dropped phone calls that some users are experiencing. The software is reportedly expected to be made available in the coming weeks to iPhone 3G users, who will be able to download and install it on their devices through Apple’s iTunes Store. On Friday it was reported that silicon from German chip supplier Infineon is responsible for the fault.