Just got this email from TopoGraphix:
A new beta version of ExpertGPS is available with preliminary support
for Garmin's new USB receivers. ExpertGPS 1.3.6b1 adds the ability to
transfer waypoints, routes, and tracks to and from the Garmin 60C, 60CS,
2610, and 2650 over high-speed USB.
If you own one of these new GPS receivers and would like to help test
USB support in ExpertGPS, visit http://www.expertgps.com/beta.asp to
download the new software. Please realize that this software is unproven,
and could damage your GPS or cause the loss of data. Do not install
this software unless you have backed up your GPS in MapSource and are
willing to risk damaging your GPS.
ExpertGPS 1.3.6b1 has been tested with a Garmin 60CS and StreetPilot
2610 on Windows XP, 2000, and 98.
To report a problem with this beta software, send an email with a full
description and the ExpertGPS_Message_Log.txt file to
beta2004@expertgps.com.
Thank you for helping to test and improve ExpertGPS.
--
Dan Foster
TopoGrafix: GPS Software, Maps, and Waypoints
http://www.topografix.com