from h+ Magazine:
Data captured by the PMD would be linked over the internet into distributed software services like GPS, Google Maps, facial recognition, speech/text recognition, brainwave analysis and so on.
Would the PMD remember where you parked? Always.
Will it warn you when you are about to walk away and leave your hat and sunglasses on the bench behind you? Totally.
Will it send you birthday reminders, schedule your meetings, remind you to pick up your dry-cleaning and let you program your DVR with voice commands? Yes.
Will it find your car keys and remote control for you? Maybe.
Will it record your innermost thoughts? Probably not.
It won’t always be perfect, but it will greatly extend your normal range of memory, and over time it will become like an indispensable part of your brain.