For the next week, Instapaper for iOS is available for free as a part of Starbucks’ “Free App of the Week” campaign. To get your free copy of the app (which normally costs $4.99), you have to physically go to a Starbucks shop and get a promo card, then enter the code into iTunes.
If you don’t have Instapaper already, shame on you. Now get over to Starbucks this week and get it. Or skip the burned coffee and buy it on the App Store.