I have two problems with the PS4 currently.

1 - Why I'm unable to play films from a HDD or why the PS4 still doesn't have DLNA support
2 - This is the main one for me. Why isn't there an option to have a Push-to-talk solution. I really hate having an open mic or listening to others who have an open mic. I don't know how they could implement it now but I wish they thought about it. Hopefully in games which don't use the track-pad much they'll be able to bodge in some form of PTT.

Other than that, I'm still enjoying the console.