I, respectfully, disagree with the sentiment. I'm not going to go all "I'm NEVER buying Canon again, blah blah blah". If they don't update the software for T2i users that's fine, irksom, but I'll live.
I just think that Canon and the rest should follow a computer software sort of model - where minor revisions, even the addition of some features are considered minor, are free while you are expected to pay for major revisions.
At any rate, HD zoom isn't the end of the world for me, it's more of a "it's nice to know I have it if I ever need to use it" sorta thing.