you can unlock the tytn 2 for free now. There also some stunning Roma available for it at xda-developers. Whatever you do, read the "hard spk" info first. Mines working a treat.
Sorry for the spelling in my post above this one...Must have been on the grape.
xda-developers.com (no warez allowed on the site..They forbid it too) have a boat load of custom roms, the hard SPL NEEDED to allow you to flash these roms (ONE LAST TIME DON'T UPDATE YOUR ROM UNLESS HARD SPL IS INSTALLED), plus the unlocking apps needed for the tytn2 and virtually all other ppc's