I have been playing with my shiny new Bliptronic 500o, which I received for Xmas. Rather than try to describe it, I can show it to you in action.
Straight out of the box it’s a bit limited. It only plays in C major (and A minor, har har har), there are only eight instrument sounds, and the tempos are fixed at 20-beat intervals. But those are limitations easily overcome with some effects processing, as seen at the end of the video.
Since the device is so inexpensive, I have high opes that it will be hacked and circuit-bent. If someone can come up with a MIDI control add-on, then the fun will really begin.
In the meantime, I’ll mate it with some of my other gadgets.