Over at Vanity Fair, Kurt Eichenwald has put together a must-read overview of the ongoing rivalry between Apple and Samsung. After the latest round of legal proceedings, its a great way to catch up on the feud between two tech heavyweights and a reminder of what set off this historic clash in the first place. Einchenwald puts a major focus on Samsungs business practices — which are often questionable and sometimes downright illegal — and the startling loyalty of its many employees. …