I disagree wit the first commenter saying that most people aren't buying the kindle fire for it's size. I REALLY would much rather have a 7 or 8 inch tablet for easier portability. I almost purchased the HTC Flyer because it was the PERFECT size, but it didn't have honeycomb on it and I was worried about it being underpowered. I'm sure I could have rooted it and installed a custom ROM like I did my thunderbolt (very happy with that now), but by the time I wanted it, it was already outdated.
I'm probably going to end up buying the Transformer Prime because of the power and dockable keyboard. But I will always be saddened that it's not smaller. Only time (and my available money) will tell what I end up getting.