Today’s featured promo on MacUpdate offers Digital Alarm Clock 2.7 for US$5 (75% off, retail $19.99). “Digital Alarm Clock is a small desktop application that tells time the 1970’s way. Its authentic-looking LED display illuminates your desktop in reassuring shades of Nixon red — just like you remember from your old bedside table.” Digital Alarm Clock 2.7 requires Mac OS X 10.2 or later.