Some information from another forum, where a participant knows a person who has been testing and has access to Amazon staff:
https://forum.tabletpc.review/t/pen-...-scribe/968/27
>It is NOT pressure sensitive and all versions of the Scribe have the same digitizer.
>
>Apparently that’s done due to the materials used in the screen including the anti-glare layer.
>
>It does have decently low latency, 9ms, though not quite what Samsung hit with
>the s22 ultra which does however use some special software to achieve that.
>
>Also it is running a “customized device specific” version of Fire OS 8.
>Fire OS 8 is based on Android 11 builds.
>
>Last but not least IT WILL NOT allow 3rd party apps, at least at launch,
>though Amazon is considering it for future updates.
My thought on maps was that in the absence of 3rd party support, it would be useful to just load images of the USGS maps --- I like to keep track of which trails I've hiked at a given park or conservation area and paper maps get pretty grimy after a couple of trips.
A remaining question is if the stylus from a Kindle Scribe can be used on other Wacom EMR devices --- if so, which ones/what generation. As I noted in the past, Wacom has made non-pressure-sensitive styluses/digitizers, but it was possible to use the non-pressure-sensitive stylus (usually described as a "signature" stylus) on a pressure-sensitive digitizer (where it yielded a full pressure line).