I think the 3.0.2 issues are real. Did u check your firmware (i think u might need sirfdemo.exe)?
semsons who sell the i.Trek S3 (
http://semsons.com/is3usbgpsres.html ) which looks like an OEM BU-353 to me say that they will have the 3.1.1 in 2 weeks...
No sure if i should wait that long or just get a Holux GR-213 which seems to be shipping with the new firmware.