Just as long as buyers do not expect their device to equal the iPad, they will be happy. I suspect there are some people that ordered it thinking it was an "iPad Killer" and they might be upset when they learn that does not do what they think it will or should do.
I view it as a more advanced e-book reader not a serious entry into the tablet market. Every time I research the device I learn something I do not like. For example, limited memory and no memory card slot. I did not know your only option for apps was Amazon. Are you saying the Android Market is out? This might be a good thing especially if the tablet is limited.
According to Anantech the Amazon app store will be the only way to get apps on the kindle fire.