Kindle Touch 3G can’t touch most of Internet without WiFi
Amazon has clarified that the next generation of its 3G Kindle, the Kindle Touch 3G, will not be able to browse the Internet without a WiFi connection. Users will still be able to use 3G to sync book and document purchases, but anything beyond Wikipedia will be off-limits.
Browsing was (and still is) an experimental feature on the last iteration of the Kindle, now known as the Kindle Keyboard 3G. The experiment appears to have failed as far as Amazon is concerned, as it will restrict the 3G access of the Kindle Touch 3G to browsing Wikipedia and downloading books and periodicals. The Kindle Touch 3G’s webpage does not directly note this restriction, stating only that it has "free 3G wireless" that "works globally," but a post in the official Amazon forums states that "experimental web browsing (outside of Wikipedia) on Kindle Touch 3G is only available over WiFi."