Aren't the developers continuously working on something as we speak? Last I heard, Yanni was working on the wallet with other developers that they hired.  Nemgun is currently working on the validator development with another group of developers.  They have been testing the two pieces of software together and have found some things which would've set them back later in development. Therefore, they chose to fix the bugs and have the software readily available to work together earlier rather than later.  Yanni has been releasing pictures of the wallet and their progress.  Hopefully we will have a fully functioning wallet which supports 20 blockchain currencies soon.