Ah, how we do love a good root-hacking resulting in the ability to run homebrew code. And being that we also have a soft spot in our heart for Archos's 605 and 705 series players
, ARCwelder ought to do our kind and yours quite nicely. If yours is running firmware 1.7.13, check it out, it should get you root access to the device's Linux shell, enabling you to do all kinds of fun things, like develop and run your own apps, or see how long it'll take to break the DRM on downloaded media. Did we say that?
[Thanks, Justin and Nathan]