Update 7/26/08. There have been recent USB driver (4-28-08) and firmware (5-07-08) updates, and the PC software has been replaced (7-04-08), but the most significant change is that SportTracks now supports the GH615 via a plugin. Since I use SportTracks I have not looked closely at the new "g-Sports PC Utility" software, but it appears to be more functional than the original "PC Utility" software. Some significant quirks remain. When the GH615B is set to STATUTE(ft, mph) units, the elevation still displays in miles -- e.g. 1.702 miles instead of 8987 ft.
Update 9/10/07. Shortly after writing this post I learned that the GH-615B has been discontinued in the U.S. in favor of the GH-615M, which includes a heart rate monitor.
Chugging up Mt. Baden-Powell, I pushed various buttons on the GlobalSat GH615B, searching for the screen that displays elevation. I had seen it on a run during the week, and now I couldn't find it. Wait... What? My elevation is 1.702 MILES??
When my Forerunner 205 had to be returned to Garmin a second time, it seemed like a good time to see if there were any new GPS-based running watches I could use for tracing the routes of my trail runs. The description of the GH615B on the GlobalSat web site looked promising. Like the Forerunner 205/305 it had a watch-like design, and the specs said it also used the newer, more sensitive, SiRFstarIII GPS technology.