Let me know how it works for you. I still need to work on triggering, but the basic logic analyzer functionality is there.
Also, I have been working on a device profile with the help of the author (Jawi) of the alternative SUMP client. Once the profile is correct and Jawi adds it, the next release of his client should have better support. The most significant feature is it will no longer require disabling auto-reset as he added the ability to delay a bit until the device is ready after the serial port is opened. If you want to use the original SUMP client you'll need to disable auto-reset, but really Jawi's client is the way to go.