Not smooth as Silk, but you will still be able to use your (retroactively-renamed) Kindle Keyboard 3G to access Web content. tbd when there will be a wide-area-wireless Kindle Fire, and if it will support Kindle browser access on Wi-Fi only. I haven’t often used the 3G browser access on my Kindle 2, but it was very handy when I did (e.g., once while waiting in a Chinese airport terminal).
The Kindle Touch and Kindle Touch 3G saw Amazon bring touch-support to its e-reader, slimming the device down and making it lighter for owners but it seems that wasn’t the only thing that was cut from the new e-reader after Amazon confirmed that Touch 3G owners will not be able to use the Kindle browser to visit their favourite websites.
Previously, Amazon has enabled owners of its Kindle 3G devices to make use of free 3G wireless with no annual contracts or monthly fees, allowing them to download books anywhere without having to find a nearby Wi-Fi connection. Not only was this useful locally, it enabled Kindle users to use their 3G wireless connection across the world.
Users will still be able to visit Wikipedia and download their books, they just won’t be able to check sports scores, check their email or visit their favourite websites.