Contextualizer

'To do' lists are all well and good. I'm disorganised. I need organising. I'd use them all the time...
...if only I could remember to look at them.

The Contextualizer would allow you to input items with not only a priority but also a context. This context would generate a 'to do' list that was customised to your current circumstances.

For example you could input something that (in plain text) would go something like this. 'Next time I meet John tell him about that thing with the canary.' A week later you are in the bar having a quiet drink. John walks in and, after a brief radio conversation between your contextualiser and his bluetooth underpants, your contextualiser vibrates discretely in your pocket. If you took it out of your pocket you would see the message on the screen but the vibration is enough to remind you. "Hey John," you say, "Remember that custard-yellow canary..."

Alternate contexts:
•Things to look up when I'm next on the web. The Contextualizer listens for the clacking of the keys and the clicking of the mouse. By the amount of text being typed it knows that you're surfin gand not typing an email to Aunt Agatha.
•Things to remember when I'm going on holiday. Enter all those things you wish you had on holiday knowing that next time you're packing you Contextualizer will remind you of them.
•Odd jobs that I know I'll only get around to if I'm bored. Hit the "I'm bored" button on your contextualizer and it will come up with a short list of jobs that you can do in your current location as well as one or two displacement activities that might while away the time.
•That book I was going to lend to Jim next time I go to see him. You tell your Contextualizer that you're off to see Jim (more formal meetings would be gleaned from its diary function) and it says, "Don't forget to take him that book."

Now, there are some advanced 'to do' lists out there that can take location into account making some of this baked. Some of the advanced functions I'm talking about need a high adoption of wireless technology as well as some adaptive reasoning from the device skirting close to the territory of the WIBNI. Hopefully I've plotted and described my course well enough for you all to understand where I am going and to avoid those two barbed hazards.
Ah, time for a coffee. Must remember to...