Hi,
I'm not sure if this necessarily constitutes a "bug" per se, but it would definitely make life easier using the site on tablets/phones. On the BL homepage, the "input type" for the search bar (below) is either set to "text" (or doesn't have a "type" specified—default behavior is "text").
Because the form type is set to "text" rather than search, it doesn't bring up the "search" or "go" button on mobile interfaces. On the iPhone/iPad, this means that in order to search I have to switch out of my preferred keyboard (Swype), and back into the iOS default keyboard in order to submit a search (the return button for the iOS keyboard works as search, but other keyboards do not).
I know this sounds minute, but it's also a really quick fix! It's an HTML5 attribute, but degrades well. Thanks!