How about adguard? (https://adguard.com/). It uses a VPN running on your phone to block ads on android (same as datally uses to save data, which probably makes them incompatible with each other) It isn't free but it works great to block ads and also can be used as a simple firewall to block individual apps from accessing WiFi or cellular data.

How is this different from buying baseball cards, hockey cards, or magic the gathering cards? If this is considered gambling then all of these need to be regulated as well.

Looks like RIM is going to have to find a new name for their tablet now that Google is using the "play" prefix.

This new Google Play thing even has a Play Books section!