Since most of us here are interested in OS development I think it's a 
good idea someone to introduce pros/cons of MicroKernels vs. Monolithic 
Kernels OSs :) Further more, QNX is neither OpenSource, nor Free so in 
one way or another it's hard to get information on it's design. So the 
point is when you have the time write your "From system developer's 
point of view: moving from true network distributed micro kernel OS QNX4 
to solid kernel OS NetBSD" :)

Ian Zagorskih wrote:
> On Wednesday 02 July 2003 19:17, Gary Thorpe wrote:
> 
>>>Before NetBSD i worked alot with microkernel OS QNX4 and i cannot say
>>>it's
>>>supperior or not. Just another ideology. Every architecture has it's
>>>own
>>>benefits and weak sides.
>>
>>Yes, but some architectures are better than others, despite all having
>>benefits and weaknesses (of course everyone has differing opinions on
>>which ones are better). Would you like to replace your modern
>>multitasking OS with CP/M or DOS 3.3 - after all everything has
>>strengths and weaknesses? It depends on what you want to do with the
>>OS. So what are microkernels well suited for as compared to monolithic
>>systems? In what cases would you opt for one over the other?
>>
> 
> 
> Ohh well, this is a long topic and i'm really not so long in BSD world, less 
> then two months. After five or six years in embedded design for QNX4.x. And 
> this is 2:38 of night atm here so i'm a bit tired to type a long objective 
> letter :)
> 
> But this topic is quite interesting [IMO] and i found something good 
> developing embedded stuff for NetBSD now same as i lost some good QNX 
> specific features i used to use in the past. So if you want i can at least 
> try to write a bit later some esse a'la "From system developer's point of 
> view: moving from true network distributed micro kernel OS QNX4 to solid 
> kernel OS NetBSD".
>