[baddox]

The bug is that it didn't ask me to confirm before putting a charge on my account. Normally, if you try to update an app that hasn't been purchased on your account, it will give an error that the discounted price is not available on your account because you haven't purchased the app.

This is most certainly not a big in Installous. Have you used Installous? All it is is a collection of links to cracked .ipa's that people upload to free file-sharing sites.