I can't believe this 1080i issue isn't 100% iron-clad resolved yet. I could be completely misinformed here and please correct me if I am misinformed (as I come here to get informed).
But...
My HDTV, while is now about 4 years old, is a rear-projection set that plays at 480i, 480p, and 1080i -- thats it. No 720i/p at all. I had always assumed this was a good thing, because 1080i is the standard to which the industry, particularly the broadcast industry, is STILL working to standardize on, with 1080p acting as an artifact just to push the display industry specifically, along.
I've made a few rationalizations for why I don't own a PS3 yet, but the 1080i thing is absolutely huge for me. I guess I can't believe it isn't resolved yet. I hate to dig up an old fight about this that I know has been hashed out on here time and time again, but the PS3 1080i issue is the biggest surprise for me of this generation.