The mobile phone has come a long way since its inception in the 1970s. This cell phone picture gallery will show just how much they have evolved and maybe even give you a glimpse as to what the future holds.

One of the first public accessible portable cell phones was "the brick," which weighed about two pounds and cost several thousand dollars. Air time wasn't that great either; callers had only 30 minutes of talk time available before the battery went dead.