I'm not sure, I have business class internet, I can download a 5gb file in less than 30 minutes. But for the life of me I can not stream wirelessly to my ps3 from my computer. It used to work fine but after the updates a couple months back I have not been able to stream. Tried Tversity and PS3 Media server and the playback stutters every 2 seconds. Movie files are all xvid or avi. It used to work fine, and the router is like 8 feet away. Netflix and online gameplay is no problem, signal strength is always 100% so I dunno what happened.
As long as your wireless or ethernet connection is strong you should be good. It may lag a little but that depends on the content. I never bothered using the ps3 browser to watch stuff on there. Other than youtube, that worked ok.
My little bro has a 3d tv and he has unchartered 3 but he hasnt played it on there. He' playing it on a 2d tv 42 inch 1080p and its fine. Why would it be different? Either you have 3d capability or not they aren't gonna make 3d only games and if you don't have 3D then it would still look the same.
Nope, reviews of the game will be general to gameplay and other things. Although you could find reviews for the people who played in 3d. To use the 3d feature yes, you do need a 3d tv, but its not recomended if you just want to play the game. To me, 3d is a gimmick, I don't really notice a big difference plus it gives me a headache.