Does Infinito Wallet have Desktop version for Windows, MAC, LINUX?

No, we haven't had a plan for desktop version yer. Infinito Wallet is now available for Android on Google Play and for IOS on App store only

App Store https://itunes.apple.com/us/app/infinito-wallet/id1315572736?mt=8

Google play https://play.google.com/store/apps/details?id=io.infinito.wallet&hl=en