The Integral

Re. the mount plate thing: Velcro might work well for attachment/easy removal there.

Also, for visual comparison purposes, here are some links to photos of my Jornada 720 (some of which show the device next to a ruler):

Also, in addition to having the capacity to perform TTS functions (albeit after some pretty headache-inducing system file wrangling), the device itself has a lot of other useful functions that essentially come with it by default. There is, for instance (at least in the 720) a built-in voice recorder — so if you are someone who likes making audio notes to yourself, you can speak into the device and play it back later on. I also have personally been using the calendar/checklist function extensively — I know a lot of devices have that sort of thing, but of the various ones I’ve tried, I like this one best.

And as far as battery life goes — the 720 supposedly can last 9 hours on a single charge, though I imagine that would go down if one were outputting audio the entire time. I’ve never tried outputting audio constantly until the battery runs out, but if I ever try that experiment I will certainly post the results somewhere. I can, though, say that I am incredibly happy with just having this thing to take notes on in lectures, etc. — a while back I took a full-size laptop to a presentation I attended (on artificial intelligence), and the darn thing conked out battery-wise within about an hour and a half, even though all I was doing on it was typing! The Jornada (and probably similar handhelds with keyboards) could probably last a whole school or conference day on one charge if you were using it mainly for note-taking purposes.