Teh fnuny tinhg is taht wehn all teh lteters are srmacbeld in teh wrdos ecpxet teh frsit and lsat ltetres yuor biran can siltl pocrses tehm.
Pretty crazy huh? It has been argued that since this is possible that we do not actually read phonetically by the letters but have memorized each word as a 'picture' that is so many letters long beginning and ending with specific letters.
In that sense, even our communication as it stands now is pictographic in nature.
Yes. International traffic signs are pictures with no words. The only issue with developing an entire language of solely pictures, is the complexity of such a language. Also, I'm not sure how a set of grammatical rules could be written for such a tongue in that tongue.