A new crop of GPS enab­led PDAs and smart­pho­nes is com­ing along, and I’ll be curious how well they inte­grate GPS into their workings. What I would like to see is:

• exact timing (the GPS time signal is quite good, the sys­tem should be able to syn­chro­nize to that)
• auto­ma­tic time zone cor­rec­tion – if you know where you are, you know what time­zone you’re in
• inte­gra­tion with address book (how far am I from a spe­ci­fic address, what’s the clo­sest address in my book from where I am, ide­ally sor­ted by categories)
• con­text­ual todo lists – what things do I need to do if I’m at home/at work/close to my nor­mal supermarket/next to a train station

and that’s only just the start.

Is anything out there that can do that already?

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