PDA Essentials issue 52 is now at newstands across the UK, with a group test of 'Blackberry killers', in which the Nokia E61 was pronounced 'a clear winner'. There's also a guide for users of other mobile OS for migrating everything to S60, plus a full review of the UIQ 3 Sony Ericsson M600i, with the verdict 'Superb as a mobile email handset'.