This application blocks USSD codes in tel: URLs from executing in the dialer without explicit user action.
The hack itself was discussed yesterday.
http://news.ycombinator.com/item?id=4569686
Unfortunately, most people think it is only Samsung phones or the Galaxy S3. In reality, the vulnerability affects most Android phones out there right now.
http://dylanreeve.posterous.com/remote-ussd-attack-its-not-j...
