By Hannah Johnson The Bookseller reported today that France’s largest publishers will launch a joint e-book distribution platform in mid-June, with full operation of the system expected in September of this year. Publishers involved in the venture include Eden Books (Flammarion, Gallimard, La Martiniere/Le Seuil), Eplateforme (Editis, Média Participations, Michelin) and Numilog (Hachette Book Group). Distributor Epagine is also involved. …