Apple wants to know what developers really think about its App Store changes. It may regret asking.

• Apple better get ready for some tough conversations.
• The company is inviting developers to give feedback on controversial new changes to its App Store.
• The changes, made to comply with a new EU law, have been described as a "step in the wrong direction."

Apple is about to find out what developers really make of its App Store shake-up. It might want to brace itself.