So we're pretty sure that our credit card information was stolen when we purchased an app from the google app store. I would highly, highly suggest that all of you who have purchased apps check your credit card statements and make sure that all charges that are on your card, are charges that you authorized.
Someone bought another $40 worth of apps, and then tried to charge about $1000 in electronics. Luckily for us, we happened to be checking our credit card statement (which is linked to our checking account) because we were getting ready to do some bill paying, so we caught it pretty quickly, and the vendors are working with us to reverse the charges.
Our next call is to Google. Just curious to see if anyone else is in the same predicament.
This was our first purchase at the app store. Unfortunately, it's looking now like it'll be our last.