I'm one of those "who came back to N900 and don't remember exactly what to do first". Nice guide!

EDIT:

Friend, just an update, I think there were some intricate details in the procedure that needed to be documented. I'll go ahead and write a Wiki article for U-boot and how to set it up to work with Backupmenu. Some of the other posts that I reviewed were:

http://talk.maemo.org/showpost.php?p...&postcount=915 (this post attempted to boot Backupmenu when you have U-boot by saving some files in "MyDocs" to help automate the process or integrate Backupmenu processes to U-Boot)

and

http://talk.maemo.org/showpost.php?p...&postcount=701 (this one closely resembles your steps but covers some more details, but still I found some minor things lacking and needed a bit of re-write to be better understood and to be more descriptive).

My motivation to write a Wiki article stems from my first article which is Ubiboot (for Nokia N9)...also, I wanted to have some documentation that I can always go back to in case I forget (just like with the N900 which I stopped using for quite some time but started using it again).