http://unicode.org/emoji/charts/full-emoji-list.html
I was doubtful of emojis at first, but now I'm loving the concept. They really help me communicate emotions that I wouldn't put into actual words. Smileys can't really do that.
Culturally I see it as a the first universal (limited) language, using standardized ideograms. Maybe in a few decades we can express full sentences and we will have a written language for all Humans to use. 21st century hieroglyphs.