> What do you think of those ?

I think if you're going to ask questions involving logic, you could
ask the candidates, if they can't show specifically how a problem
would be solved (ie they aren't able to write some assembly on the
spot), the logical method(s) they might try to do it. As we know
with our projects, even given our collective experience, sometimes
the answer to a problem ends up not being the one we probably
thought it would have been

Depends what you're after. Knowledge they have now, or their
potential as problem solvers ?

> In your opinion, what skills are essential for embedded developers ?

Good general knowledge, or at least awarity, of sensors, protocols,
power supplies, that sort of thing. I appreciate that some may just
be starting their working life and have no hands-on experience, but
you may find out who were the geeks at school

> What sets them apart from desktop app programmers?

I guess those guys don't build their own circuits (mainly)

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist