Bump, I have dual boot on mine, still don't have navigation, but getting closer
Navigation works now.
I'm using the Darkstone froyo build.
Basically there is another "system.ext2" that is somewhere that you need to replace the one that came with Darkstone.
GPS is working flawless for me.
So the thing is Darkstone was working for me just fine with multiple reboot.
Once I replaced the new system.ext2, the reboot game me the green boot of death.
So then I got my class 6 micro in and I decided to do a clean one.
Booted it up the first time and the new file and it worked fine.
I went outside, got the GPS signal and now it gets the signal really fast.
Only slight problem for me now is sometimes I reboot it to the green screen of death but then I try it again and it would boot into Android just fine. My rate is now like 50%.
Everything works great except.
- Call voices are robotic(I have the t-mobile rom version). People said if I use a different ROM, the voice problem will be solve. I plan to try the Miri.
- Volumm are still too low but its not a big deal.
- Battery drains real fast but I have 3 batteries

All the other problems do not affect me.
I just need to install a different ROM and I can honestly say I can use this on a 99% daily basis.