We mentioned last night about developer Chris Walsh getting full file system access to an HTC and Samsung device and how this was just the beginning.
Wasting no time he just posted this video demonstrating what file access looks like and it's pretty exciting (well, if you're geeky enough).
He notes on his blog that this just a preview and that "You’ve got FULL access, create, delete, browse files etc. Just can’t delete system ROM files, IE coredll.dll (obviously)."
Cool. One more video after the break of root access.