aTV Flash version 4.1.2 was released yesterday. While the version does not have any flashy new features, it does include many stability and performance improvements.
DVD playback has been improved to provide better compatibility for DVDs with special menu types. This includes DVDs such as The Lord of the Rings series and many Disney DVDs.
SMB network streaming has also been greatly improved. These improvements will be most noticeable when streaming large files (such as DVDs) over wifi.
Enjoy.