Version 2.3 also includes alpha-level support for the ETrex and Oregon family. In both cases, you have to set the device in Spanner Mode (or Garmin Mode), not in mass-storage mode. If you run into troubles, activate the device diagnostics under "my option", then try an upload and send me the log: this is always the first, necessary step to understand what is going on under the hood.
A few more devices have been reported to work fine with Sportablet, although I don't have any log yet:
- Garmin astro 220
- Garmin gpsmap csx 60
- Garmin montana
If you have one, give it a try!