Agile Web Solutions has released an update to its popular 1Password Pro password management app adding over-the-air sync via Dropbox and support for iOS 4. Prior versions of 1Password Pro synced with the desktop version via a local Wi-Fi connection and iOS devices could not sync directly with each other. 1Password Pro 3.5 now allows users to choose to sync data using a Dropbox account allowing the desktop version of 1Password and multiple iOS devices…