Nice plugin! :)
I took the time to create a .POT file and the Swedish .mo & .po files for it.
Send me a pm with a mail address if you want me to send you the files?
But there seems to be some sort of problem (I'm new to this so it can be my own ignorance) but there is no localization done in the profile area, and only partly in admin!
you can see what i mean here.