The OpenStomp Coyote-1 audio effects processor, an open source effects platform in guitar stompbox format, is now available from Howler Audio.
The OpenStomp Coyote-1 is an open source audio effects processor intended for guitar players. With the Coyote-1, you can develop custom audio effects in software (like distortion, echo, chorus etc.), mix multiple effects to build [...]

I’ve had my eye on the Boss RE 20 Space Echo, which is based on the classic Roland RE201 tape echo, for a while.
The RE 20 Space Echo basically reproduces many of the effects that are possible using an analog tape delay, but does it in a reliable, affordable digital package.
This video [...]

Behringer has released several stompbox collections, targeting different types of instruments and music. Each package includes 3 stompboxes, a pedal interconnect and patch cables.
Altogether, there are 5 available packages:

The Behringer MTPK985 Metal Trio Package includes the Super Metal SM400 distortion pedal, Multi-FX FX600 multi-effects (with 24-bit audio resolution and flanger, chorus, phaser, …) and the [...]

At the Winter NAMM Show, Line 6 introduced the ToneCore DSP Developer Kit, a programmable stomp box effects development platform that lets anyone with a PC and an interest in Digital Signal Processing become a hardware effects developer and distributor.
For the first time, anyone with an interest in DSP software development can write, develop, test, [...]