I have a proof of concept version of OpenWatch for Symbian but there are some things keeping me from releasing it right now.
1) I have to use a workaround to make it connect in Python. This works fine on 1.9.7 but not on 2.0.
1a) The connection is no that super stable.
1b) Nokia released 2.0 via their Software update service only (almost 2 months ago). It still not possible to use 2.0 on some phones. (
http://discussion.forum.nokia.com/forum/showthread.php?t=192263)
1c) Nokia did not release the source of 2.0 nor any changelog. (
http://wiki.opensource.nokia.com/projects/PyS60)
1d) The source code of 1.9.7 is not complete which keeps me from adding feature to make the connection stable. (
http://discussion.forum.nokia.com/forum/showthread.php?t=190423)
1e) Who knows if they ever check their tracker (
https://garage.maemo.org/tracker/index.php?func=detail&aid=4958&group_id=854&atid=320 4)
2) Notifications for calls/SMS are ok but the rest is not that easy (is it even possible without creating plugins for PyS60?)
3) Each one of you would probably have get a test certificate and sign their copy to allow such things as key injection (call rejection, silent ringing call, control player...).