Crossfade Loop Synth is a simple sample playback synth plug-in. It plays samples in the classic sampler manner - by simply altering the playback speed according to the desired note. No fancy timestretching or pitch-shifting is applied. You can control how the sample is looped as it is played. An adjustable amount of crossfade can be applied to the loop endpoints to smooth the transitions. This makes it extremely easy to produce glitch-free pad sounds.
The loops can also be played backwards and alternately forwards and backwards (pendulum-style). Further sound processing can be applied in the form of overdrive/saturation, filtering and envelopes. The synth is 32 note polyphonic, and all parameters can be controlled by MIDI controllers.
Crossfade Loop Synth costs $10 and a demo version is available.