If you do a bit of contracting besides or publishing your own apps then you will have to deal with a wide spectrum of human beings. Some appreciate every tiny tidbit of love you put into their apps. Some of the more entrepreneurial kind will constantly come with new ideas but always assume that those where part of the initial agreement.
I’ve had an encounter with an illustrious specimen of the second kind and so I thought it would be therapeutic for my hurt pride to ask the tweeting community about their opinion. Here are the responses for a view of what other iPhone developers generally think about this topic. I got a big number of responses which for the most part contain good food for thought.