ASUS' slew of Computex rollouts on Monday included notebooks and netbooks designed as Windows alternatives to the MacBook Air. The UX21 shares the tapered, all-aluminum body but is even thinner than its Apple counterpart at 0.67 inches thick and can be optioned up to a Core i7 processor. It similarly depends on SATA 6Gbps-based SSD storage and has custom software that takes more explicit advantage of the flash drive: it can resume Windows 7 in two seconds and stay in hibernate mode for up to a full week.