An awesome detail about Android's App Market — which had recently announced paid apps in the store — has come to light: If you're not satisfied with an app you bought, you can return it within 24 hours of purchasing it.
Though simple, this customer service feature is fantastic; I would love to see a similar policy implemented for iTunes' App Store, since I tend to gravitate toward cheaper apps, particularly because I know that once I buy it, there's no going back.
I haven't wanted my money back for an app that I've paid for yet, because I tend to mull over the decision so carefully, reading every posted review, so I'm confident when I do pay. What about you? Ever regretted the purchase of a smartphone app?