Have been meaning to give my HP Slate and Mobile PC another chance so today I spent awhile rigging a better mount. For one thing, I'm less reluctant to drill a few holes in my car today than I was two years ago when it was new.
I modified my old homebrew mount, making it more secure. It's tilted upwards to reduce screen glare by only reflecting the roof of the car and not the windows. This is also a much more comfortable position to tap the screen. Today was dark and cloudy, so I'll have to see how it looks on a sunny day.
Only thing I don't like about this setup is that I have to look further down. I have mixed feelings about that - it's actually good not to have it in your view while concentrating on the road. Will see how I like this after a few days. The way my car is configured (VW Tiguan), the screen really looks like it "belongs" down here though.
Plugged in my uBlox/Navation GPS (originally from Streets & Trips) and it was immediately recognized and accepted. Got a fix quickly even though it hadn't been used in over a year.
Not crazy about having a USB cable going up to the dashboard, but maybe I just need a longer extension cable that I can route where it won't be seen. Or maybe I'll get a "puck" that has its own long cable? For now I'll just use it as-is until I decide whether I'm going to continue using the Slate.
Also thinking about Bluetooth units to avoid the wire, but don't like having to charge the battery. And speaking of batteries, I never found an acceptable way to power the Slate in the car. I wrote about my issues before when using a power inverter (it made the touchscreen freak out). HP now sells an adaptor that converts the proprietary power connector to something else. Problem is, I'm not sure what that "something else" can connect to. I think it's intended to fit another type of AC charger. Last time I checked, it sounded like trading one proprietary connector for another one. For now, I'll just run the Slate on battery power.
I still like a lot of things with Mobile PC. It makes good use of the screen space, and the big buttons work really well - better than any other software I've tried on the Slate. I've hacked the user interface a bit to suit my tastes (wrote about this a couple years ago). About 90% of the time, I just use GPS as a moving map.
My main requirement is that I want to make my own maps, and Mobile PC supports this nicely. The map rendering style is nicer than the Nuvi but not as nice as the Montana. But I do like that big screen.
I'd like it to be really easy to use - like a dedicated unit. I hate getting messages from Windows about software updates, loss of wifi, etc. while I'm driving. I don't want to deal with Windows at all in fact - you pretty much need a stylus for that on the Slate. Remains to be seen whether this is possible.
Will try to just leave Mobile PC running and put the Slate to sleep when not in use (by sliding the power switch). Tried this once and it worked fine, with Mobile PC finding the GPS immediately on power-up.
So that's my update. I sort of feel like there are only about 10 people left in the world who use Mobile PC. But for the next week or so, there will be 11.