Since the PS2 hard drive was introduced in March, only two applications that use it have seen the light of day: Final Fantasy XI Online and the infamous HD Loader.
Someone spilled the beans over at the official PlayStation2 HDD message board about HD Loader, and it’s now full of locked threads and mass hysteria. You really need to dig to find any questions about Final Fantasy.
If you haven’t ordered a copy yet for yourself, you may not be able to for much longer now that it’s on Sony’s radar. Divineo has proven itself to be an incompetent reseller, so your best bet is to try an alternate source.