Hi,
I have the watermark in the krpano viewer when I use iphone/ipad. However I added the krpano.license, krpanoiphone.license.js and krpanoiphone.js in the directory of the krpano.swf.
You can see an example here by using an iphone or an ipad : http://www.myvisit360.com/entreprise/iloha-seaview-hotel
Thanks.