Varying reports if it's done or not. Earlier, it was reporte Joe Allen is now a Red after a couple weeks of rumors. Transfer fee of £13.5m. See the link for details. But keep in mind that link is Goal.com, and that can mean anything.
UPDATE: Apparently it is not true and Swansea are quite upset that Rodgers and Liverpool are trying to poach a player releasing this statement, "Swansea City can confirm that Liverpool have expressed an interest in Joe Allen, despite a written agreement with Liverpool not to approach any players within the 12-month period of former manager Brendan Rodgers leaving for Anfield."