For the Treo or Centro owner that travels to areas outside of Wifi hotspots, the ability to use your phone as a modem can be a life saver. USB Modem is one of the easier ways to enable this connectivity and has recently added support for the newly released GSM Centro.
USB Modem allows you to use Treo 600, Treo 650, Treo 680, Treo 700p, Treo 755p and Centro smartphones as a USB modem for connecting a desktop or notebook computer to Internet. To surf the Internet from your PC
you will need only a USB cable and a Treo with GPRS/EDGE service or CDMA 1x/EvDO data plan. However, for more reliable work with Sprint or Verizon carriers you may need to purchase their tethering plan.
USB Modem can be purchased for $24.95 and is available both for Palm OS and Windows Mobile.
[Source Mobile-Stream via Palm InfoCenter]