LOS GATOS, Calif. (AP) - Not a cash register is in sight. The electronics on display are all powered up and ready for use. Personal trainers, specialists and newly minted concierges in aqua blue shirts make the Apple Store feel part salon, part Internet cafe - just without the espresso. Over the past year, Apple Inc. (AAPL) has revamped its 201 stores, changing the layout, adding services and increasing its staffing. The "concierge" service that Apple launched last week is only the latest initiative designed to draw more visitors and bolster already record-breaking sales. "Apple indeed does things differently from...