I would agree with this general sentiment as I see many blogs and short youtube films talking about Little India. Jackson Heights seems to be known as an "Indian neighborhood" to those who have never visited, or have only visited 74th St.
But I'm curious, Chuckster, that you think that Chowhound is filled with this same idea. As a fairly regular reader of that site, I definitely have seen many conversations about other types of food in JH, including Columbian, Burmese, Thai. Is it that you think that more often than not, when there is a new inquiry about where to eat in the neigbhorhood that people are asking about Indian food?
I was pleasantly surprised when there was a spot on the 11pm news last week (channel 4 I think) talking about the diversity in Jackson Heights and they did not spend excessive amounts of time on 74th St. They also interviewed a school-aged child who proudly told the names of all her friends and where they were all from (different countries) and they interviewed the Korean owner of the Italian deli. They may have gone into Lety's as well - I can't remember all of it.