Hi Ross,
thanks for the feedback. There is one thing left with the yellow LED: If you are running v2.63 in the DV4* you can reload/change the speech-file without re-flashing the firmware itself. Simply copy the voicefile of your choice to the SD-card and insert it into the powered-off module. (Be sure there is only one voicefile (*.voc) residing on the card in the root dir !). Then switch on.
On every power-up, the DV4 first looks if the speechfile (*.voc) on the inserted sd-card (if any) has the same signature as the one already loaded on the module. In case it differs, the module starts transfering the "new" speech file to the module, which lasts around 3 min. -> During that, the yellow LED lights up constantly.
I have intensively "played" with the latest BAT60 and its firmware at the ProWing fair last Saturday. It was fascinating; for me, there is nothing compareable on the market, regardless of the price. Also the latest tray-type TX looks fine... The reaction-speed of the configuration screens have dramatically improved. This will be a great TX coming soon...
best regards
Thomas