About 2 weeks ago, my computer crashed, and it had Windows 8 RP and the Kindle App. I sent it back for a replacement. I got the new computer last night and installed Windows 8 RP back on it. First thing I wanted to do? Install Kindle from the Windows Store.
Though, lo and behold, it is not available. Same location settings as before, but now it's not there... what the *bleep*?
You are correct I had the same issue with the Update stuck in the store I removed the Kindle app and the update went away. Keep in mind this is still the Release Preview and apps may come and go so if the Kindle app is still functioning correctly and you
use it then I wouldn't worry about it for now.