While I doubt that someone will actually help me, I still have to try.
I can't seem to get my pendrive or my HDD to work. Device Manager tells me that there's 'insufficient power to operate USB device' which is silly - I have a powered USB hub that works well on Windows and I see no reason it shouldn't work with the phone. I'd love to use the system, but without mass storage support I don't think I will. I thought of modifying initrd to use rootfs image from mounted HDD so I wouldn't need to keep it on my already packed SD card, but without working HDD support it will be impossible.
Siemens C25 -> Nokia 3510i -> Nokia 6610 -> Nokia 6103 -> HTC Artemis -> HTC HD2 + iPod Touch 3G
My lovely Leo:
WP7 HD2O + ParanoidAndroid JB