Yes, I'm still actively working on it. It is getting close to a releasable state. But it is a lot of work to create good software.
The horizontal part is working pretty well now, I have triggering in both single- and dual-channel mode working reliably. Horizontal offset controls are also working well. In general the UI is pretty complete.
I'm currently working on proper trace display. I have a basic implementation, but I don't like it. When showing a large buffer on a small screen, it is not sufficient to just take every N-th sample. The results look like crap, so this weekend I will be working on finding the min/max values in the range of samples that corresponds to a pixel and showing a vertical bar instead of a single sample.
The steps for the initial public release:
1. Finish trace display
2. At least rudimentary vertical calibration. The signal is pretty close as is, but on some ranges it is quite off
3. Vertical offset control that is actually in Volts, not in DAC counts.
4. General code clean up. There are a lot of TODOs there.