Is a 10-inch Kindle Fire coming? Amazon says 'stay tuned'

We already knew to expect a 7-incher today, and that's exactly what we got in the Kindle Fire. We just asked Amazon Kindle vice president (and thinking man) Russ Grandinetti when we might expect a larger successor. With a smile, Russ said "Stay tuned," and left it at that. If you'll recall, RIM's Ryan Biden told us at a past Engadget Show that there was "no reason" the 7-inch BlackBerry PlayBook couldn't be shipped in a different size, and given recent rumors that both outfits were working with Quanta, it's not too tough to read betwixt the lines. We also asked about an international release of the Fire, knowing that many of you are lamenting its US-only release in November. We got the same response there. So, it's coming... the only question is when.