There have been some rumors previously about Mozilla following Opera in terms of developing their own mobile solution, and it seems that there is an official announcement confirming these rumors. There is not much information available of the browser developed under the code name "Fennec", but Tristan Nito from Mozilla has told that it will be available for Windows Mobile, Symbian and Linux too. Of course there is one and a half-two years of wait left until then as availability is not expected before 2010. The iPhone-Firefox relation on the piture below is just a concept art, as Mozilla is not planning support for Android or OS X as of yet.
Translated by Szaszati