The reviewer tested several Wi-fi cards for both the Palm Treo 700w and 700wx, but none of them worked well - except for the Just Mobile SDIO Wireless LAN Card. This 802.11 b/g card is very easy to install and use. You only need to connect your PC and mobile device via ActiveSync, run the CD, and insert the SDIO card into your mobile device. The Just Mobile SDIO Wireless LAN card is only a bit bigger than a regular SD card, but it’s much smaller than the other Wi-Fi cards encountered by the reviewer. The reviewer also suggests disabling the phone while using Wi-Fi to preserve battery life. If you really need to make a phone call while using Wi-Fi, you can do so via VoIP - this is usually cheaper than cellular phone packages. Since this card is enabled for 802.11 g connectivity, users should consider this card as this faster connection becomes more common among Wi-Fi hotspots.