I thought @fwdlabs had put together a useful list when I saw it last year, but that was nothing compared to now.
If you’re a filmmaker and looking for a little portable help in pre/production/post then chances are you’ll find it in the Apps for Cinema Artists. I know I can be a little iPhone-centric when it comes to these things, but you’ll be pleased to know the list is completely platform agnostic.
Thanks again for the link! We just added a handful of iPad and Android apps to the database.