Franko, I've never smoked salt, or used a salt-aging/drying method myself, but here's some research starters, if you don't get a direct reply from someone who has tried it, soon...
Salted Steak (in Beef Forum):
http://www.smokingmeatforums.com/se...itleonly=1&byuser=&output=all&containingforum[]=101&replycompare=gt&numupdates=&sdate=0&newer=1&sort=relevance&order=descending&Search=SEARCH
Smoked Salt (in Cold Smoking [Other] Forum):
http://www.smokingmeatforums.com/se...itleonly=1&byuser=&output=all&containingforum[]=2167&replycompare=gt&numupdates=&sdate=0&newer=1&sort=relevance&order=descending&Search=SEARCH
Smoked Salt (in Smoking Meat [and other things] Forum):
http://www.smokingmeatforums.com/se...itleonly=1&byuser=&output=all&containingforum[]=90&replycompare=gt&numupdates=&sdate=0&newer=1&sort=relevance&order=descending&Search=SEARCH
You should notice some flavor of the smoke imparted into the meat from the salt. Anything that contacts the meat should give an added flavor, either applied precooking, just prior to, or during cooking. For precooking applications, the longer the time you allow for exposure, the more opportunity for flavor enhancement. The intensity and flavor profile will also be directly related to the smoke wood, length of time, and likely, humidity present in the smoke chamber during the salt smoking. If I were to theorize on this (OK, I will), I would think that too high of humidity will begin to dissolve the salt during smoking, while extremely low humidity may reduce smoke reaction and take longer to achieve a good amount of smoke, just as it does with meats and everything else I have smoked. Although, and I'm guessing here, I don't think smoke will actually penetrate
into the salt, but instead just collect on the surface as a residue. Marked color change should be noticed after smoking.
If nothing else, it would be a great experiment to combine the smoked salt with a salted steak process and see just how far you can take it. Sounds like an interesting and very tasty ride to me!
Good luck and great smokes to ya!
Eric