What the font name use for twitter???

Twitteru  Vorgeschlagen von vinz 

i don't think this is a font... Try to find similar in the rounded theme on myfonts : http://new.myfonts.com/search/rounded/fonts/

Similar to Artista
http://www.dafont.com/font.php?file=Arista&page=1&nb_ppp_old=10&text=twitter&nb_ppp=10&psize=l&classt=alpha

Wow Thank you Vinz