Oh well, I just moved my Opera channel, and DSiware shop channel far out of the way in case I accidently clicked them by mistake. I guess I should be OK assuming I don't manually select an update or receive one via a future DS game cart?
This kinda stuff always makes me nervous, because all of a sudden I have this button I shouldn't press that is on my DS. I guess it's the price I have to pay to use flashcarts. I just know there will be some really awesome DSiware that gets released later on and makes me wish I had updated.