This is a really nice, modern logo. The font isn't really capturing,although simplicity catch my eye, but the use of the clock being applied to fill in the missing letters is really creative, the gradient background gives good surrounding depth.
There is consistent proximity throughout the logotype. The negative space forming the "N" makes sense with the name because looking at the logotype engages the audience when locating the "N". I also think the logotype font works well bold.
This logotype illustrates freedom literally by having the op half of the M fly off like a bird. The logotype uses the comparison of birds and freedom as a message. This logotype is effective in communicating meaning.
I love the way Batman's mask is incorporated into the M. The large, bold letters and dark background feel appropriately sudden and mysterious. The little Batman mask melds right into the rest of the darkness (He is the night).