The November AdMob metrics report is out and it features data on the rise of WiFi powered devices or WiFi networks as mobile Internet access points. According to the findings, in addition to the iPhone and other WiFi-enabled phones, "mobile devices that aren't phones (e.g. Sony PSP, iPod Touch) are also generating significant traffic on WiFi."
Note below that PND Dash is one of the leading WiFi-enabled devices in the US market.
Here are the top-level data on WiFi devices for the US:
In the US data, a striking "42% of iPhone requests are made on WiFi." That compares with an even higher 56% of iPhone requests in the UK.
As WiMax/LTE/4G is built out we may see more and more "non-phone" devices accessing the Internet as well.