I'm considering buying Rock Band The Beatles for my only gaming console, the Nintendo Wii, but I was wondering if there are any big differences between the version on Wii and the version on Playstation 3?


Question: How to change title of button A when button B is pressed?
Answer: You can't use the sender for your needs. Because sender is the button you've clicked on and not the one you want to change the title of.

So, you need to make an IBOutlet of your button like you did by creating your IBAction. Then you can call it like that:

yourButton.setTitle("Title", forState: UIControlState.Normal)