impressions of leopard guided tour

[will lomas]

        hi

wow the i chat sharing feature really impresses me. is this like  
remote desktop, so say if i am unsure how do something on the mac  
could a friend literally take control of my mac and show me what to  
do whilst speaking to me
or i guess i can browse a friends mac if he or she has something iw  
ant o pull off it like a song etcetera
also stacks are going to help me. now i ahve to decide as a visually  
imppaired user do i upgrade? or clean install
i know we can backup before hand but the beauty it seems of an  
upgrade is that all the stuff you'd have backed up to put back on the  
mac again will already be there
will