I don't know if this is the right place for this, but, here goes. When I am looking for games, I see the long, short, medium etc. games but nothing that tells me if a game is a talky game. I think it would be great if you added that category. I hate to download a game only to find that one has to read it and then I have to delete the game right away. It sure would save a lot of time for me. There are so few talky games or demos out there it seems, but, I would assume there will be more all the time. also, young children that have a hard time reading could play the games too if they knew which ones were talkies. Just a suggestion!
While I think you should be able to filter games based on characteristics like having voice packs, I think this is a bad idea. Lots of excellent games have no voice packs, and children should be forced to read until they cry or are ostracised by their friends.