[Haskell-cafe] Text.JSON, Speed and Bytestrings

Hi Cafe, I am using the Text.JSON library to [un]marshall messages passed over the network and was wondering if the speed would be significantly improved by either changing the code or adding a module to implement the same functionality using Bytestrings instead of classical strings? If the consensus is that it would be worth it, I'll look into adding that code.. Thanks, Max