The SMPTE reference comes from reading their journals and published papers which I heartily recommend if you are interested on the subject. They are way more interesting and accurate than wikipedia entries. Lately they've been way too focused on issues relating to digital cinema, IPTV and IT workflows but heck, that's what's hot right now.
By the way, thank you for providing that table as it proves me right. The key issue here is that you are misreading it. For starters, the table is about displays and their compatibility with the HDTV standards. As you can see, only the 1920x1080 row is marked as 1080p standard format. Both the 1024x1080 and 1280x1080 rows indicate displays with less pixels than it is required by the standard, which means the display uses a scaling process to remove detail in order to acommodate the signal to the reduced pixel count.
You won't find anywhere anything to support your position that 1280x1080 is 1080p. But hey, keep trying. If you wanna go back a few steps and try again the "well, it's the output resolution that counts" argument, well then Sonic 1 played through a scaler is Sonic 1 1080p.
Current-gen game collection uploaded on the profile, full of win and good games; also most of my PC games. Lucasfilm Games/LucasArts 1982-2008 (Requiescat In Pace).
