Firecore have just updated its Seas0nPass jailbreak tools package for AppleTV to version 0.7.7. This update brings support for Lion and a number of bugfixes.
Back in May 2010, we did a hands-on review of the Aleratec 1:1 HDD Cruiser which enabled you to duplicate a hard drive or securely erase one without the need for a computer. There is an updated firmware available that delivers additional secure erasure functionality.