Just to clear some things up.
Both of the bugs behind the Audio and Font exploits have been fixed in the new dashboard. Existing St.db and font file exploits will not work with the new dash, at all, ever. The process used to execute unsigned code in both of these exploits is not possible with the new dash, at all, ever.
Anyone who tells you otherwise is blatently wrong.
It is possible that there are other flaws in the font or soundtrack management code, and quite probable that there are similar flaws in other portions of the xbox system software.
Personally, I would be suprised if a new flaw were NOT found, within the next 3-4 months, at the most. Probably much sooner.
In the meantime....
the 007 and MA exploits still work just fine, so all is not lost for soft-modders.
Mechinstaller, from the xbox-linux team, uses the MA exploit to install the fonts exploit on your box. Interestingly, it also FORCES a specific version of the dash onto the xbox. This is an older version of the live dash for which Mechinstaller's font files are specifically targeted. It will even downgrade your xbox from the new dash to this dash, in order to ensure that the font files will work.
So, if you've managed to lose your softmod with the new Live, go grab yourself a copy of Mechassault (it's cheap, now, and it's a GREAT game), use the Mechinstaller to downgrade your dash, install the Mechinstaller fonts, and install Linux. (All of which is doen in a VERY easy automated process) From there, you can re-install your font or st.db of choice, flash the tsop, format your harddrive... whatever you want to do.
Dont worry, kids, Live2.0 is not the end of the scene, by a long shot.
--Artifex