Treo 650 as a USB Modem

From PalmInfocenter:

Is your Bluetooth DUN crippled? Or do you not have bluetooth on your laptop and you'd like to use your Treo 650 as a wireless modem? USB Modem is a new application from Mobile Stream that enables the Palm Treo 650 to be used as a USB modem for your desktop or laptop computer. It currently works with Windows XP and the developer recommends you try it first to confirm that it will work with your mobile operator. GPRS/EDGE and CDMA Treo 650s are supported. The program retails for $24.95 and there is a free trial available.