tflight

I have not heard much yet except for the Garmin Rino 530 Press Release. I do have a PDF copy of the owner's manual if you are interested.

Why not just use time synchronization software?

Although a more traditional use I've frequently used mine to build maps of hiking, mountain biking, and snowshoeing trails around my area. Turn on track logging, go play, download data, build maps.

I've heard of people having luck with serial to usb converters and then using the serial driver, but that probably wouldn't work in your case.

I've had plenty of bluetooth GPS systems connected to my Mac that work just fine for tracking. I haven't had the opportunity to test any USB systems yet.

I would be interested as well. While most of my Mac/GPS needs are well taken care of additional applications for the market would be appreciated. My website gets lots of people looking for additional mac based GPS software from outside of the geocaching community as well.

I've always found their "versioning" a little strange. They seem to use a product number most of the time instead of a version number. The current product number is 980654-03. I've also seen references to the current version being version 2, but nothing more specific.

Picking between those two I would get the new one (original owner warranty is always a good thing).

I use my cellular phone (Treo 650) connected to Delorme's Blue Logger Bluetooth GPS.

I use DeLorme's Blue Logger GPS. I used to use something very similar. I used a Handspring PDA and the Magellan Springboard GPS Companion. I really liked it except that PDA was getting very old and I replaced it. So far StreetAtlas 2006 works well. It has not had shiny reviews in past versions though. I'll be posting a full review on my website soon. You can directly enter a Lat/Long using their 'Go To Position' function directly on the PDA.

I use StreetAtlas 2006 (handheld for Palm) to get to the general location via steet maps. Then once nearby and I park the car I use Cetus GPS (no maps) to find the cache.

GPS Store @ GPS Review <-- Shameless self promotion. But the little income I make encourages me to keep writing and collecting more reviews.

My decision was based on wanting to have as few devices as possible. At one point I would carry around a Garmin handheld GPS, Lowrance handheld aviation GPS, PDA, laptop, and cellular phone. Five devices in all. Now I just have a PDA (Treo 650), laptop, and Earthmate Blue Logger GPS. The PDA and Blue Logger now combine to be my geocaching GPS, aviation GPS, PDA, and cellular phone. So that takes me down to three devices. So when I go geocaching I put the Blue Logger in my pocket and carry my PDA, GPS software, and cellular phone (all one device!) Much easier. Boy am I a nerd! So for the convenience of having fewer devices converting your Tungsten into a GPS might be the way to go. Plus this way I can also connect my Blue Logger to my laptop to generate tracking maps, etc.

No, but I do run a GPS Review Blog and my sister works for the USGS. I'm also a private pilot so having a small understanding of how GPS calculates altitude is helpful.

I've been using a Treo 650 with my Blue Logger. The Treo 650 apparently uses a very similar chipset to the T5. I've been able to get about five hours out of my Treo 650 while connected to the GPS. The pair works fantastic for me.

thujaplicata, You do need a computer to connect with the Blue Logger but only if you want to import the saved tracking data and do something with that data. Otherwise I was able to connect the Blue Logger to both my laptop and my PDA without installing any software. Goodguys, the Blue Logger's battery is removable. It comes with a cradle charger where the battery can be charged both with the battery connected AND just the battery alone. So you could purchase a second battery and charge them both at once as well, one in the cradle attached to the Blue Logger and the other in a back section of the cradle by itself. It also comes with a car charger.

I'm using the Earthmate Blue Logger with a Treo 650. From what I can tell the chipset between the T5 and the Treo 650 is remarkably similar. The combination works fantastic. It probably wouldn't be an apples to apples comparison of battery life though. My Treo 650 running the GPS constantly will yield about a five to six hour battery live on the Treo. You might be able to estimate the battery life by connecting your T5 to a bluetooth compatible computer (if you have one) and leave the connection running and the screen on the T5 turned on.

The short story is it is MSL. But since the earth isn't perfectly round some interpolation needs to happen. You can read more of the long story on this page.