Kicking off the CES release madness a little early, PC maker Acer has today announced its second ultrabook, the Aspire S5. Set for a Q2 arrival, the S5 is 15 mm thick, it weights under 1.35 kg, and features an Onyx Black magnesium-aluminum alloy cover, a 13.3-inch LCD screen, a chiclet keyboard, an Intel Core processor, a solid state drive, and a MagicFlip I/O port panel (found below the hinge) which includes HDMI, USB 3.0 and Thunderbolt (!) connectors. Acer's ultrabook also includes the Green Instant On technology for super fast booting and resume, and the Always Connect solution enabling users to 'manage their multimedia and data on all their devices at anytime, anywhere'. No word (yet) on the Aspire S5's pricing scheme. Images courtesy of The Verge.