I did the following to make it work:
1) got latest Gear Manager from http://forum.xda-developers.com/show...php?t=2573200; downloaded 2 apk and placed them on my external memory card
a) got Gear manager: v2.0.14040401
b) and GearManagerStub.apk (placed also on external memory card, not into systems/app as recommended!)
2) Installed both apps
3) Turned on Bluetooth and ran Gear Manager
4) That gave a few error messages but I nevertheless succeeded in connecting to my new Gear Neo 2
Certainly not everything is working (yet)...
What is and is not working (still WIP; just had 30min to test a few things):
Hoem screen styler works
2) Samsung Apps: fails to find any Gear 2 apps
3) My apps
a) emails does not seem to work (again, might tale me some time)
b) Music Player is working (and I can push songs onto my watch); did not try controlling my Note 8 music player yet (PowerAmp)
c) Heart Rate Monitor: working
d) Stop watch + timer working
e) did not try media controller, but I can start the app on my phone
f) Gallery: have not figured out yet how to push picts from my tablet to the watch
h) Notifications: does not seem to work, but then again, I had little time to figure it out...
i) S Voice: detto, could not download it to my Note
j) Pedometer: works
k) Voice Memo: works
l) schedule works: unfortunately I lose all appointments when I disconnect from teh watch...would be really nice if I could store it offline (like contacts, which I have not tried yet)
m) could not get Weather to work in teh short time I tested it
Well, I hope Samsung will soon upgrade the Note 8.0 to KK with a fully working Gear Manager....at leastI got something to play with until then (and can use it as a (cool) watch)....
Good luck guys and let me/us know if you got other apps to work/download.