my home network is download 12mbps, and upload capped only at 0.4mbps. so uploading photostream is slow!
why wouldn't apple allow photostream uploaded by local wifi too? it doesn't make sense if i'm at my home network, but it still uses internet to upload to my macbook air and my iPad.
wish in iOS 6.1 there is a feature called local photostream, so it doesn't upload to apple server, i just needed it to upload from my iPhone to my air and iPad through my local wifi.