There is no prebuild wallet. You can build your own, we have instruction on our github (the readme of the source.) You could also run an VM with Windows/Linux for the wallets for those platforms. You could also, if you have an Android phone, install the newly made Android wallet.
Are you plan to build it in future?
There are plans to, probably in Q1 of 2018. We don't know for certain but we are planning to.