So it is mentioned on other thread that there are minimal differences between QNX and Maemo

http://talk.maemo.org/showthread.php?t=63016&page=5

I'm not sure this is the case. Perhaps the differences between QNX and Maemo are less than the differences between Android and Maemo, but I'm not sure the differences are minimal. certainly, a big diff is that QNX is not open source. others may know the details, please chime in...

Also, isn't Playbook the only shipping mobile tablet with TI OMAP 44xx?