Actually you will be able to watch your external HD recordings on any 622 that is in your house, however you can not brinig your drive to a friends house and watch your recordings on their 622.
meaning i can watch ext HD recordings between 622s over the ethernet connection? or do i have to move the ext HD?
obviously, choice 1 is the best (by far).
sounds interesting, i'd really like to see this in action @ my house!