Most of the stuff on there was just impressions of interactivity. You chose what actually filled the ram of the machine. You could switch from 4 TV channels in special TV shows/sports events. Horoscope and Weather was continuously broadcast... etc.
Ah, you know, I looked again and part of the things I had seen that confused me, such as this
...now that I look again more closely, were most likely just from the (now defunct) website for the carrier, made to mimic the interface of the unit. Not some sort of actual web interface or anything.
But yeah, either way it's something totally worth picking apart and documenting, considering how uncommon it is to have your hands on one, and even if the end result of emulation is a unit searching for signals that will never arrive. But hey, you never know...