Hey Matt,
did you find the answer yet?
Would be really great to group tiles by Launchpad. One way to simplify a users index. I wanted to create a link to "Decision Support" and put a persons reporting and Business Objects tiles here. I tried the cockpit option but that still displayed all the users tiles.
The idea of having multiple entries in SICF seems "easiest" but as you say no good if you can't link catalogs/groups/tiles to the service.
This post is quite old so here's hoping you found the answer!
cheers,
Julie Hodgson