Is IBM right to ban Dropbox and iCloud?

IBM has bitten the Bring Your Own Device (BYOD) policy bullet, and you might be forgiven for thinking that the media fallout has left it somewhat bloodied and bruised. However, when you look behind the 'IBM bans Siri' and 'IBM bans Dropbox' headlines, and start to consider what's really happened here you have to ask yourself whether it's fair to suggest that Big Blue has turned into Big Brother.