So you would do sentiment analysis on a person's tweets (and whatever else) and give them their opinion on certain topics? Sounds cool, but more like one of th

So you would do sentiment analysis on a person's tweets (and whatever else) and give them their opinion on certain topics? Sounds cool, but more like one of those "who are your 5 best friends" kind of apps than perhaps a person tries once, something I would personally not use on a regular basis (or somewhat regularly). The tech's out there for this - sentiment analysis is a pretty standard Naive Bayes tutorial subject and I am certain there are some learned models already out there. And to identify subjects you could maybe use something like MIT Entity Identification.