Not one for advertising But for those who really want to watch the Anime there is a free app called "Crunchyroll" that is avalible on the the Playstation Store (was on the UK store for me).
I found it on my PSVita the other day. It lets you watch the Anime from the start (when i last checked). it lets you watch for free with ads or... you know... pay to remove the ads. (i take the easy option and just watch them). When it loads up just go to "All" and scroll through the avalible programs till you find GE and tada your watch God Eater.