I know this is an old thread but anyone heard any news on the MAC front? I see the website has changed and there is a new layout for the PC version. They got rid of their forums so i figured maybe i could find some answers here. Hopefully we hear something soon, it seems like they've been keeping us in the dark.
If you cant get certain things on mac I recommend you go to a store and purchase a windows disc so you can run it on your computer (my friend has a mac and runs windows on it so I know this works) or if you don't want to purchase it you could download it somewhere and use it with a virtual machine like oracle's virtual box.
I believe the OP was talking about game overlays for Curse Voice. Yes it seems Curse is keeping Mac gamers in the dark regarding overlays for Curse Voice. Last word from Kaelten about 2 weeks ago was "soon", however the forums are now gone so all the promises for a Mac release are now gone. At this point if you are on a Mac you might as well just keep on using MultiMC and Skype, I've stopped using the FTB launcher and all of there sponsored packs.