Wrote up a little build: http://jadware.com/button-hacking-the-lenovo-yoga/
I have heard this 1% > $1000 several times, although I have yet to hear a reputable source for this statistic.
What's more revealing is that Apple has not disputed the number.
In order for QNX to meet the specialized requirements you're thinking of, every part of the OS has to be certified, which means nothing Blackberry produces will be useful to the military for 2-4 years at the soonest or it will be stripped down to the point that RIM will have no advantage.
Well, the Playbook got FIPS 140-2 certification back in July, and I believe is still the only tablet to have it. Which means when the government wants an approved tablet, there's only one on the list.
I'm kindof excited to finally have an rtos device in my hands, that I can develop for without learning proprietary C or ASM. 99cent iFart is great and all, but I want to build $99 iSecureMedialRecords or $99,999,999 iCIA
Due to lack of disk space, this fortune database has been discontinued.