I was using dm but went to stock to get 2.1 and now I miss not having my phone at 800oc. How do I reroot and can I use dm to flash a diffrent rom? Like ultimate droid or cynogen?
I haven't seem the video but I trust him enough to know it'll work.
As for using DM to flash other ROMs I recommended ROM manager.
You can download it from the market.
I suggest you get the premium version while you're at it.
It allows you to flash a lot of custom ROMs all in one app.
Ask anyone, it's good!
Definitely worth it!