[bedoig]

Easiest/most accurate way is to tether to a computer and test your upload and download speeds. If your upload is above, say 200 kbps, you can be sure you are using Rev A. You won't see much of a difference just browsing from your phone, as things like the rendering speed of your browser play a big part in the perceived speed of your experience. Also, it isn't always going to be a night and day difference. You can be using Rev A but still get low speeds if you are in an area with heavy data traffic. All in all it is defintely a nice boost though.