Attached Link: http://www.nerd3d.com/catalog/product_info.php?products_id=83

Nerd3D has a set of logos in PSD format which are meant for this sort of use - however they haven't been updated in a while and only go up to P6.

These aren't the "official" logos but do the job just as well, and of course avoid any repercussions from Smith Micro. They may object to your usage of the logos on the grounds that it implies they've endorsed your product.