LiquidSonics has released Mobile Convolution, a true-stereo reverb processor for use with Audiobus and Inter-App Audio hosts.
It allows the IR to be stretched, cropped and envelopes applied to shape the sound of the reverb in a very natural and musical way.
A collection of impulse responses is provided, and external impulse responses can be added via Open-In… support in apps like Mail, Safari and Dropbox, or downloaded directly from within the app.
The app is available from the iTunes App Store for $9.99 USD.
More information: Liquidsonics