@xeroc is the number one Steem app developer, IMHO. I'm pretty sure they already have some idea to put it in as a feature down the track. I'm quite sure they will soon. Not sure if it was your article, or another (I'm reading without full context) but they have a concept for Steem Curator Guilds coming up, where you 'lend' your SP to other users to curate with. Obviously that will be a reward for you as well.
It'll probably be called SteemTrain too, cos when you get a vote from a Streemian curator, next thing you know, 20 more votes come in. I just had it happen to me today even!