Amazon (AMZN) news/rumors pour in ahead of its 1:30PM ET event. 1) A TV ad depicts Amazon's "Paperwhite" backlit Kindle e-reader, a ~7" Kindle Fire, and (most intriguingly) a bigger Fire. 2) The Verge reports Amazon might show off its rumored smartphone, but it remains an unfinished product. 3) As speculation continues about its set-top box plans, Peter Kafka reports Amazon offered to buy Roku earlier this year. 4) Verizon will be pre-installing Amazon's apps on most of its Android phones.