Today’s featured promo on MacUpdate offers iTwist ‘n Go 1.3.1 for US$10.95 (45% off, retail $19.99). iTwist ‘n Go features: iTwist your external iSight camera to answer and hang-up video and audio calls; assign “Go!” keys to call/answer/hang-up/decline calls via keyboard and external devices; automatically view all iChat AV video calls fullscreen; automatic answering option for all iChat AV video/audio calls: and more. iTwist ‘n Go 1.3.1 requires Mac OS X 10.4 or later.