It will be - see Eric's responses here https://github.com/coredevices/mobileapp/issues/270

I am very keen to use the PT2 version. Don't need a dedicated ring.

Less the part where you can do it one handed, I don't see why they wouldn't be. Even the Time Round 2 has a microphone just no speaker. If not official support somebody else can always make it.

Probably https://apps.repebble.com/brain-dump-index01-for-your-pebble...