I know this has already been posted in Aftermarket software...but Storm users must get a kick out of this app for our software lacking device:
For OTA:
Sunclock - gega
For Desktop:
Sunclock / free download
this app shows the illumanated areas of the world as well as the dark portions and updates every minute.
Sets up to 4 other clocks (beside your home clock) and is just plain cool...
updates are soon to come with home screen capabilities!
For the storm DL the 320 version (as this only works in landscape)
I haven't tried any other size...
enjoy!