Breaking news: TPE on sale this weekend only

The Photographer's Ephemeris app (TPE for iOS) -- one of two noteworthy Apple iOS apps for planning photo shoots of the Sun and Moon -- is on sale for $3.99 this weekend only. That's right, for two days only you can buy TPE for less than the price of LightTrac ($4.99), a similar yet much less robust app. Don't sleep on this extraordinary offer!