If your primary consideration in the product is outdoor usability you will still be best off getting a 2 GB.
Here is my result:
Indoors the 4 GB screen works great and is very readable with the firmware fix.
In outdoors in the shade I can read the 4GB screen with the firmware fix. It appears dimmer than the 2 GB however. Without the firmware fix, I cannot read the 4 GB in the shade.
In bright sun I can not read the 4GB screen with the fix, and I can barely read the 2 GB screen.
I find the 4 GB capacity to be a big advantage, so I can sync more Rhapsody Channels :). I can also Load up my playlist and go for a run outdoors, and generally dont need to do much navigation, I can pause, skip tracks, adjust volume, all without needing to look at the screen.
With the firmware fix, you will be able to navigate the 4GB unit in the shade, but not in bright sun.
Message Edited by sansafix on 03-13-2008 02:10 PM
Message Edited by sansafix on 03-13-2008 02:11 PM