Well, I guess the original poster did a good job with their description (which it turns out, is the same as their website's sales material) - I downloaded a trial version...here's my impressions:
1. Works fairly well - obviously, not exactly as good as typing on an external keyboard, but this is a much more portable (and less expensive alternative). I prefer the landscape layout better, as it gives my gargantuan thumbs a bit more room to manuver. I'm not sure if this software uses any type of error-compensation algorythms, it sometimes seemed a little unforgiving - so touchtyping doesn't quite work.
2. One obvious (and not surprising) drawback of using a touchscreen keyboard is that this does require you to touch the screen; even with the cleanest of hands there will eventually be an oily build-up...hope that you have lots of screen protectors!
3. I consider myself fairly well-groomed (I shower once a week ) , and my nails aren't excessively long by any means (though I should probably have a trim tomorrow)...but I think my nails were actually slowing me down with the use of the keyboard today. I can't imagine that this program would be terribly useful for those PDA using women who keeps their nails fashionably long.
4. This program works by replacing the "on-screen" writing option - so whenever you tap on the ~ on your OS 5-series Palm, the keyboard comes up. As long as this program is installed, that feature is no longer an option. This may be a dealbreaker for some, considering the next item:
5. Compatibity - this program works great with the built-in Palm applications (Calendar, tasks, notes, etc.), however, when I tried running it with Quickword, I got an error message saying that it simply wasn't compatible. I had a bit more luck using it in Minicalc; however after entering some information my Palm had to soft reset. I think as long as you use this with programs that do not require heavy text formatting you should be okay.
I also used mini-keyboard with the freeware program Progect and it worked just fine.
Also seemed fine with Versamail - I can see how this program would be a godsend if I was on the road (with only my Palm and cell phone)and suddenly had to do a lot of email...(if you've ever been in that situation with only a stylus, please tell me how you've kept your wrists from getting sore...)
6. Demo limitations - I haven't seen anything (yet) about a time period limitation; rather , every text you enter with the trial version has [DEMO] automatically added to it.
I guess you can't really expect a onscreen touch keyboard to be exactly as good as a physical one, and with that in mind then this is a very interesting alternative. It works reliably for most basic applications and is smartly implemented. Having this really adds to the possiblity of using a Palm stylus-free, without needing additional hardware (although your screen may get a little oily).
Even though I've thought of more cons than pros, I'm still seriously considering getting the full version of this software simply for the increased ease of text entry it offers for the price.
Pros + allows for keyboard style entry without needing additional hardware + generous-sized layout (especially in landscape orientation)
Cons - not compatible with all apps running on Palm - using this app disables "graffiti anywhere on the screen" option - repeated use of the program could make your Palm's screen pretty dirty - need to have very short nails for maximum efficency