— SteemCN

ios/android app is a great idea
private messaging between users would likely be a bit pricey to the network, but it could use the alotted bandwidth per account just as posting I guess
limiting moneybags on payment would be kind of against the whole point of steem. Those moneybags only have power in the ecosystem when they lock up their steem (exposing themselves to the risk of holding most of their wealth in steem that they can only access little by little over 2 years). So if they begin upvoting terrible content, they are hurting themselves as they watch their steem go down in value.
what do you mean news feeds? Like subscribing to a feed (like say, bitshares or beyondbitcoin) and receive notifications of when new posts occur there?
it might be even better to implement some form of translation utility instead?
it definitely would be nice to receive notifications...also would be cool to be able to tag content with a username to send an automatic notification to them to check it out.
Great ideas!