Originally Posted by R4D4R
Like hell its not. All the compact SLRs that I was looking at have it, Rebel 3Ti, 4Ti, D5100, etc. Its one less dumb thing you have to carry around and worry about. If these new cameras want to fill the gap between dumb consumer PnS cameras and full blown SLRs, that is a feature they should have
Like hell it is. On axis flash is really only good for fill and if you're using it as a main light source, which the pop up auto flashes so like to do, you're usually going to get red eye from the lght bouncing off the retine into the lens. It has to do with family of angles, which is an important thing to consider when shooting anything reflective. Not to mention it's also harsh light and the shadow from being almost on axis looks amatuerish. In order to fix it, you still need one more "dumb" thing to carry around that would let you either diffuse the light or bounce the light if you were in an environment where you could do that and even then the on board flash is a dinky little thing with barely any power.
Your statement about the Olympus PEN series not having an on board flash is wrong. The PEN E-PL1, E-PL2, and E-P3 all have pop up flashes.
Now, learn about light so you can see why photos with pop up flashes and mostly on axis flashes are considered something an undesirable trait instead of trying to argue with someone that might have a little bit more experience with you. And yes, there are people that use flashes on wide angle photos, wild life, and landscape.
Here's a start:
Strobist: Lighting 101
And read Light Science and Magic by Phil Hunter.