UK writer Guy Kewney seems to be enjoying himself with a bout of "I told you so" in regards to 802.11g interoperability. Kewney has long adhered to the idea that releasing a myriad of 802.11g variations before the standard was finalized wasn't a very swift idea, and now new research seems to indicate that 8011.g variations may not get along with 802.11b products or even other 802.11g products. Kewney obviously wasn't alone, as last year was packed with such worries; the request for patience on the part of vendors not being heeded. Performance is also a concern, as several variations simply aren't up to snuff.