Is Warp Helper supposed to save its state between sessions?

We're not currently saving the state of anything in the Warp Helper. I guess we should save the contents of the "lead time" text box and the current warp target; is that what you're talking about?

Just committed 8e564ad which should persist those fields. You can try it out if you want by replacing GameData/MechJeb2/Plugins/MechJeb2.dll with the dev build MechJeb2.dll at http://jenkins.mumech.com/job/MechJeb2/

Thanks. :]