Hi, i read all the post and since i am in south east asia and traveling between HK, Cambodia and Thailand, i thought i could offer a little light at the end of the tunnel for the 2 main issues, forwarding and gear number vs note number for outgoing. here we go...
1. For the forwarding, the auto forwarding is very buggy, it is a software issue and seems to be more on the gear s side. If you switch off the bluetooth on your phone you will see that your note will actually notify you that the call forward has been activated BUT your gear s will keep popping up an error message that it was not able to set auto call forward. All i did was stop using the gear s after hitting the OK to accept that it could not connect. Wait for the next pop up to tell you that it is forwarding before playing with anything else on the gear s. In short, this is buggy and i am sure with some updates it will be smother although its not that bad. It works the same with sim cards from all countries i have traveled.
2. For the forwarding and outgoing call to show the correct note number, this was tricky. its the sim card. in Cambodia no matter what i do and same in HK,... (using top up sims) once connected remotely, its greyed out, can not use my note number from my gear... HOWEVER in Thailand, where i am a post paid monthly customer. I called them and told them which number i was using in gear s and which i was using in Note. I was asking for a promotion, but they said none available yet. After that simple call to inquire, i found that on my gears, when remotely connected i indeed had the option to call out using my note phone number. SO GUYS/GALS, my conclusion is it must be with the carrier and perhaps some carriers have not figured all this out yet....
Good Luck.