I have asked an almost identical question, and here is the response that
I've gotten from 3COM:
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--
>I understand that the ROM ID on a Palm Device is unique per device (ie per
>user). First of all, am I correct that this is unique to each users palm
(I
>compared several Palms running identical OS's, and they each had different
>ROM ID's).
Masked ROM based Palm OS devices do not have a serial number, or may have a
partial non-unique serial number which identifies its manufacturing origin.
>What happens if the user upgrades his OS?
For flash based devices, a new version of the Palm OS is written to the
flash. For masked ROM based devices, various components of the OS are
replaced with RAM resident versions.
>Does the ROM ID change?
No, this area is not modified by an end-user flash upgrade.
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Now, I understand this to mean that for devices that have a ROM ID, this is
a unique number and cannot be changed, but not all models of Palm contain a
ROM ID. If you find out more, let me know.
-Jeff Allen
----- Original Message -----
From: Brian Kresge <[EMAIL PROTECTED]>
To: Palm Developer Forum <[EMAIL PROTECTED]>
Sent: Friday, February 04, 2000 8:03 AM
Subject: Is the ROM Serial # immutable?
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi!
>
> I am developing a Palm app that needs access to a totally unique and
> immutable number in the PalmPilot. Is the ROM Serial # changeable by
> a user to a pre-determined value? Or can this only be accomplished
> by replacing the ROM?
>
> Also- I heard that Handspring Visors do not have a Serial #
> accessible via the API? Is this true?
>
>
> Thank You,
>
> Brian Kresge
> Software Engineer
> x�tier inc.
> (716) 425�2260
>
> PGP Fingerprint:
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>
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>
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