if you are a brand new newbie like me, and know some of linux like me, I think you can follow:

0. come here: http://wiki.maemo.org/Category:Users
1. flash N800
do 0, and choose updating tablet firmware and follow the instructions. no sweat here.
2. become root
do 0, click on root access. it is a piece of cake.
3. partition an SD card
do 0, and click on partition a flash card, follow the instructions, but if you see this message which confused me a lot when you try to mount the partitions, use lsmod to check if what you want to install are already active:

insmod: cannot insert '/mnt/initfs/lib/modules/2.6.21-omap1/mbcache.ko': File exists (-1):File Exists.

4. clone OS
go to: http://www.internettablettalk.com/fo...ighlight=clone, start from step 8, or 6, if you have not partitioned SD yet.

5. USB control
when I tried to install it from Maemo, it shows 'incompatible package'. so
Do 0, click USB host mode, and use echo command to do it

to be continued....