I've run out of the current batch of Viper 200 pcb's but i will have a new Viper 250 available in september.
It will run my V4.0 firmware running on the pic 30f processor, which im now running on the Viper 60 and Step2linear.
The new drive will be able to run IGBT's as well for much higher voltage.
Also this summer has been extremely busy with cnc router sales which is great (as compared to last year which was very slow ), but cuts into the time i can spend on making drives over the summer. I think the economy is picking up for sure.
Larry K