1) There will not be a flash player app because, well, it's near useless on such a device
2) What you mean is a flash plug-in for Safari, which Adobe is working on but Apple doesn't want to be a battery hog. For all the people complaining about no Flash support, there will be more complaining about poor battery life with a Flash plug-in that wasn't very efficient. Apple and Adobe are not completely stupid about this.
3) You'll probably have to wait for a satellite radio app. I think they have their hands full with that little merger thing. The two companies will be combining services, and they're probably going to spend time working out contracts and such. Until then, check out AOL Radio and Pandora. They're not bad, they work on EDGE, and they're FREE.