::I agree with you: an article on Egyptian hieroglyph is about one Egyptian sign, whereas an article about Egyptian hieroglyphs is about the entire system of signs. I much prefer the use of the plural noun hieroglyphs to the adjective hieroglyphic, or its derived plural hieroglyphics. If there is no disagreement, I suggest that this article is moved to Egyptian hieroglyphs in a few days. 

 ::Completely unrelated to this, I've nicked two templates from the Finnish Wikipedia: Template:Hiero and Template:Hiero/pharaoh. The first presents a unified system for displaying hieroglyphs on article pages (particularly for names of deities). The second provides two cartouches for the praenomina and nomina of pharaohs. The variables are straightforward: variable 1 is the name in 'said' transliteration, variable 2 is the praenomen/name in hieroglyphs (you have to include the tags still), and variable 3 (for the pharaoh template) is the nomen in hieroglyphs. I've changed the order of pharaoh's names from the Finnish system: it seemed to make more sense to have the praenomen first.