1080p vs 1080i - HD Videos Progressive & Interlaced Scan Explained

I have an article on HD related website regarding the HD video functionality of the Sony SLT-A55 and A33 new DSLR/SLT cameras. In this article, the editor claims that Sony is going in the wrong direction, offering 1080i/60i movie recording, and not allowing cinematographers 60p (progressive scan) and 24p/25p frame rates. Well, this is kind of new to me, all of those terms, so I have decided to