Developer website: Mobile Stream
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 (with Mac OS X, including Leopard) to Internet. To surf the Internet from your Mac 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.
Version 1.60 adds support for GSM Centro.
Mac OS X and a Palm handheld.