I have used probably a half dozen or more on my desktop and have used Exbal for years in the field but a few months back I purchased LoadBase and it's great.
Now with the 3.0 version out it's even better and when the new version for the desktop comes out it'll be even better yet. LB does things that Exbal just doesn't do and makes the long range stuff even better. Just remember you have to feed it the right info and use its features right but the results are amazing.
LB runs under the Windows platform but if you decided to go with Exbal you could get a version for either Windows or the Palm platform.
Customer service for LB is the best and updates/upgrades have been coming at a very consistent pace. Gus is working his tail off to make his software the best out there and there are a lot of us using it now that think he's succeeded.
You can use the search feature and get a lot of reading for either Exbal or LoadBase.
You can find some reading here also. Link--> Weather meters and Ballistics software-Palm or PC