Osram just released a new line of zigbee light bulbs called Lightify. Temperature tunable white only. About $30 each.
Here’s the kicker: the Hue bridge won’t pair with them, with or without ST.
So either they’re not ZLL certified and don’t know the secret handshake (in which case ST might become able to pair even if Hue bridge can’t) or they’re using the no color temperature tunable device type instead of the no color dimmable device type. (ZLL has a lot of different bulb device classes. )
Or both of the above are true.
Anyway, I wouldn’t expect them to work with ST yet, but if someone knows different, let us know. @tyler , is ST supporting all ZLL device classes, or just some?
CNET has a detailed comparison with other brands.