You seem to imply that there is a technical infeasibility that cannot be
overcome. If the public point database were segregated by a UNIX-style
permissions system and connected to via SSH, wouldn't it be just about as
safe as any public file server or database? Files that are "shared" can be
accessed, files that are private stay private. A server-side daemon could
negotiate friends lists, proximity, and other details without ever exposing
private position data publicly.

Am I missing something on the privacy front? Perhaps I just didn't grok your
example.

On 7/3/07, Ian Stirling <[EMAIL PROTECTED]> wrote:

Dylan McCall wrote:
<snip>

There is another aspect.
Privacy.
For example, I might be happy to be visible to other phone users in
50-100m, and my friends.
I certainly do not want to be locatable by a random person over the
internet.

This does imply some sort of server, to which I upload my position, and
will push to me information about any nearby phones.

Also that publishes public key encrypted position, which anyone can
download.

A static database simply can't really do this.

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