I have had the same problem with the Helloone iPhone theme and now tested on the hello canvas for iphone theme with the same bug. Can anyone fix this bug on the support team? I think this is a problem for everyone using the iphone themes. Its a huge problem especially for twitter, facebook, and other like buttons also not showing properly in the website.
FYI, I have tested the Magento default iphone theme and it is fully compatible with like buttons and other html code not showing up. So this problem is fixable.
First, remember to disable your html editor and enable “html tags on frontend” in the attributes “Description” and “Short Description” in your admin:
Catalog > Attributes > Manage Attributes > search for “description” > under Frontend Properties
in “Enable WYSIWYG” select NO, in “Allow HTML Tags on Frontend” select YES. Do the same for the attribute “Short Description”
Then, you have to modify 2 files of your iPhone theme: list.phtml and description.phtml