From Nova Media:
Mobile High Speed configures your Palm OS device for 3G UMTS, EDGE, GPRS wireless online connections in a few clicks and supports most mobile phones and network operators worldwide. Mobile High Speed is an Internet connection software, which has already stored all information needed to go online with most mobile network carriers and nearly all mobile phones by Motorola, Nokia, Philips, Siemens, SonyEricsson with either infrared or Bluetooth port. Mobile High Speed supports most network operators worldwide capable of 3G UMTS, EDGE, and GPRS connections. In addition to 3G UMTS, EDGE, and GPRS connections SMS and Tap-Dialing are supported for most phone models.
Version 5.3.5 adds support for more devices and network providers.