Defective Records Software have updated VSTi Host for OS X to v3.1. In addition to adding support for ReWire, many new features and fixes have been implemented:

• Added support for ReWire client mode.
• Added patch name drop down menus for all VST plugins.
• MIDI port names now reflect custom port names entered into Audio MIDI Setup application.
• Scanning of VST plugins on startup is now more robust - if error is encountered with particular plugin, scanning will continue of remaining plugins.
• Display of plugin currently being scanned on startup now reliably displayed in startup window.
• Added status window menu option, to display application startup and status messages.
• Updated addendum document.

VSTi Host costs $35 USD and a demo is available.