hi, tomorrow i will buy a 770, but i have many doubts

with the hacked edition (SO 2007) it will work as a 800?
can i see youtube videos?

what things cant see with the navegator? (java, flash)
it will be seen as in the computer?
can i use the nokia 6021 as modem?

what more things can do the 770, movies, music, navegator....

thanks a lot and sorry my english