let me state this as simple as I can....
Ok... Let me ask you! Meego 1.1 is intended for 'DEVELOPERS ONLY'
does nokia stop you from downloading and using it in your n900? NO!!
Now... Dualboot for n900 is intended for 'DEVELOPERS ONLY' would you think nokia will stop you from using it in your n900?
If anyone can't answer no for this question then you got a -9999 IQ and common sense.