>> smart phones / camera phones were a valid market
> feels revisionist.
Not revisionist. I worked in mobile phone retail from 2002-2007. There were popular, successful camera phones and smart phones even then. However, in the early 2000s, the U.S. wireless market was much slower to deploy 3G than Japan and many European markets.
There were a number of powerful handsets that couldn't even be practically offered in the U.S. as a result of the splintered TDMA/CDMA/GSM protocols and the dizzying array of licensing deals between regional carriers who owned significant amounts of spectrum at the time, making data and roaming plans very expensive and impractical for most retail users. Smart phone adoption was much broader in markets that had full 3G support earlier on.
In 2004, NBC covered the Japanese mobile market, mentioning: "The Japanese use cell phones to surf the net, watch TV, navigate city streets with built-in GPS, download music, take and transmit home movies, get e-coupons, pay bills, play games, and even program karaoke machines." By 2004, 70 million Japanese had internet access on their phones, a threefold increase from 2000 [3].
[1] https://gizmodo.com/i-miss-my-japanese-flip-phone-1843733494
[2] http://wirelesswatch.jp/2006/12/29/japans-mobile-year-in-rev...
[3] "In Japan, a wireless vision of future for U.S" (2004) https://www.nbcnews.com/id/wbna4306834