New numbers from market analyst Canalys -- using shipment data rather than actual sales to end users -- show that Apple continues to dominate as the world's leading PC maker when one includes tablets (as, some argue, should always be the case -- since they are generally used as "light" PC duty replacements). Shipments for the June quarter show Apple moving 18.6 million non-smartphone computers, with Lenovo moving into second place ahead of HP. Even as Apple's growth rate cools off at the end of its product cycle, it is still outselling rivals -- though many are playing catch-up.