Helmi is the man. I accidentally formatted my 6700's system partitions (very long story), and when I unplugged it from my computer, it was DEAD. Of course it took me a little while to realize what I had just done, and it sank in more and more everytime I pressed the power or reset button and NOTHING happened.
But I remerabered boot loader mode. I threw it into boot loader mode and got ready to reflash to Amoamare's firmware... and that failed, saying that my phone was an invalid device.
Then I found a tutorial on ppcgeeks.com titled "Stuck in bootloader mode?" by Helmi_c, and that brought my phone back to life. I even had a backup from two day prior on hand.
Bottom lines: Helmi rocks, don't mount your system partitions via WM5Storage, and check ppcgeeks if you ever brick your phone "beyond repair."
I'm definitely making a donation when this drops.