Amazon's on a roll with good news today. Apparently, company's have begun to think that rolling announcements out in waves is a good way to go about things. It makes a good day for consumers, that's for sure. We just reported that the iOS application has been updated, and now we can say that the Kindle for Android application has officially broken its Beta shell, and moved into the public's Android Market. Looks like we don't have to wait for that Samsung Vibrant, after all.