I'm considering getting a Kindle, but am still doubting as to whether the 3G model is worth the extra expense. As I'm also considering getting an iPhone later: on the off chance that I'd ever want to buy a book without a WiFi hotspot nearby, wouldn't it be possible to share an iPhone's 3G connection with the Kindle through WiFi and hence buy a book and read it on the WiFi-only Kindle?
For information about the full article “iOS 4.3 lets iPhone 4 host wifi over 3G” http://devicegadget.com/apple/ios-4-3-lets-iphone-4-host-wifi-3g/1320/ Thx.. ;)
I have an iPhone 3G with MyWi 5 on it. I can confirm that other devices such as my laptop (Sony VAIO FWIW) connects well over the WiFi hotspot of the iPhone and can access the internet but that the Kindle WiFi 6" device I also have will not connect. It seems to detect that this is a 3G wifi device rather than a WiFi network and gives me an error message saying I am not allowed to connect to devices of this type.
I dont know if the iPhone 4 or iPhone 4s will enable you to connect (as they have built in WiFi hotspots in the operating system) but an iPhone 3G with MyWi 5 definitely wont. Not sure if Android devices will allow you to or not.
Hope that helps folks
Tethering isn't allowed for the iPhone or iPad (at least not without jailbreaking it, I believe). At the same time, I have a wifi-only iPad, and I have yet to find myself in a situation where I was 1.) in a public wifi-less area and 2.) I just had to have a book for the Kindle app at that very moment. The chances are more "off" than "on", realistically, and a little planning gets obviates the scenario you describe. I feel the 3G is a bit of a boondoggle, at least for me.
You can create a mobile hotspot with an iPhone (if you pay your carrier for the privilege and your carrier supports it)
A Kindle Fire (which is WiFi only) can connect to a mobile hotspot created by an iPhone to connect to the Internet.
Given 1 and 2, I assume a "regular" Kindle can do the same.
ps - The mobile hotspot prices are insane, and both AT&T and Verizon have done nothing but raise prices as time goes on. But it's possible to do, and if you only need it for a short while you can cancel it when you are done. I would not spend the money on a 3G Kindle unless you wanted to get a Kindle 3 (aka "Kindle Keyboard") where the 3G can be used for more than just downloading books. The new Kindle 4s which have 3G do not let you web browse using 3G, only WiFi. (And if you have an iPhone, there's no way you would ever want to use the horrible Kindle browser anyway.)
It may be noted to everyone viewing this post that newer iOS brings native mobile hotspot. As of posting iOS 10 is the newest iOS, and iOS 7 allows mobile hotspot for the iPhone 4.
The mobile hotspot can be found in your iPhone's settings, with no jailbreak required. If your carrier does not allow you a mobile hotspot, then a jailbreak and installation of MyWi will be necessary.