Silverspike has released their R2 Reverb VST plugin for Mac OS X.

Features:

• High quality room simulation and reverberation.
• Simulates rooms of variable size.
• Early and late frequency response fully adjustable.
• Adjustable pan and stereo width for early and late reflections.
• Flexible mixing of dry and direct signal with early and late reflections.
• Highly optimized DSP code providing low CPU consumption.
• 32 bit floating point audio processing.
• Samplerates from 32 kHz up to 192 kHz.

R2 is now available in VST format for Windows and Mac OS X and costs US$99.