Just that everyone asks for a Photoshop this, Photoshop that... (talking about features)
And the more it goes on, the more Paint.NET is fading into a Free Photoshop clone.
No, it isn't.
Paint.NET is an image editor. So is Photoshop. There should be no surprise that they share a number of features because of the job they do.
Paint.NET is not morphing into Photoshop or anything else. It's the same image editor that was intended when it was first released. Yes Rick adds new features as time does by, but he also often says a flat "No" to some requests.
There will always be a massive difference between the two image editors - price alone should indicate this.
As for Microsoft - they are evolving as the world is changing. This is just good business sense. Nokia and the Blackberry didn't evolve fast enough and look what has happended to them....