PdaNet allows your PC to go online by connecting to your Treo 650 through the HotSync USB cable or via Bluetooth. PdaNet will make it your wireless Internet Service for your laptop/desktop computer, no extra hardware necessary.
This program is not Apple Mac OS compatible. The desktop part of this software requires Windows.
To make sure it works with your mobile operator, the trial version is exactly the same as the full version but expires in 15 days. There also versions of this program for palmOne 94118 Treo 600 and Handspring 62357 Treo 300/270/180.