Apple Computer is guarding its server plans closely, leaving observers to wonder what will come of the product line. The Mac manufacturer said on April 5 that it will preview its new Mac OS X 10.5, dubbed Leopard, at its Worldwide Developers Conference in August. But the company has yet to reference a Leopard server edition. Nor has it hinted about any plans it might have to move its Xserve server line to Intel processors from the PowerPC under its June 2005 decree to move from PowerPC chips to Intel processors by June 2007. On a related note, another Apple product’s future is uncertain. Apple has asked the development team behind Aperture to leave— probably related to the fact that Aperture got some pretty harsh reviews after its release.