handheld gps units

The Garmin Foretrex 101 uses 2 AAA batteries, not 2 AA batteries as described in Amazon's product description.

I've been waiting for this to become available as a gift for my wife, an inveterate walker, but now I may have to buy another. I've been "testing" this wondrous gadget today--this is my first experience with any GPS--and am finding it to be both useful and remarkably easy to use. The unit is small enough to not get in the way while worn on the wrist/forearm, yet the screen is large enough and the display clear enough to use while on the move. I don't seem to be experiencing any difficulty getting GPS signal (I've set it for WAAS), and I've been having a great time driving back and forth over and across my trail all day.

Pros:
Clear, informative and responsive GPS!
Small and lightweight unit
Clear display
Easy to use pages and menus
Uses any AAA battery, alkaline or rechargeable

Cons:
The 101 does not come with a PC-connection cable, but even if it did, 9-pin Serial?! Ummmm... Has Garmin heard of USB?
Also, no hint of any sort of PC software is given in any of the documentation, so if I were to connect it via a <shudder> serial port, what would I do with it?