I am working on a ZCash Desktop GUI Wallet as a hobby-type project. It is here: https://github.com/vaklinov/zcash-swing-wallet-ui. I think it will fulfill an important function for the community since the first release of ZCash is not planned to have a Desktop GUI wallet (like say bitcoin-qt) - based on information found in forums and publications.
The GUI wallet is already functional and works fine with ZCash v1.0.0-beta1. The project is growing and since I only work on it in some of my spare time, it would be helpful to get some community collaboration. If anyone is interested in contributing to the project, feel free to do so - on GitHub - zcash-swing-wallet-ui.
Update: 29 Oct 2016:
ZCash has been released. The latest version of the ZCash Desktop GUI Wallet has undergone basic tests with it and it works. Users are encouraged to use the latest version - built from source...