There is Tizen and some other derivative I can't remember still actively developed. I would by a Tizen phone if I could be sure there are enough of good apps available for it and if I didn't trust Samsung even less than I trust Google.
Tizen is a derivative in name only. Samsung effectively took complete control of the group from all the other companies on the Meego project and it seems like they only continued work to keep pressure on Google.
Nokia owned Qt and Samsung didn't want to pay fees or buy Qt outright, so they went with the mostly unknown Linux Enlightenment project (didn't hurt that it's main dev worked for them at the time). Likewise, Nokia owned rights to SwipeUI, so they opted for a remake of the Android UI.
If they'd gone with something like a cleanroom implementation of SwipeUI or webOS, I think Tizen could have been a success. Instead, it just feels like a bad, outdated edition of Android. If users wanted that, they'd just use Android instead.
i had a tizen phone. tizen was not bad. but the selection in the app market wasn't to great. f-droid has more/better apps than tizen.
unfortunately, unlike sailfish, tizen lacks support for android apps. the reason for that is that samsung would loose its commercial android license if they added android support to tizen.
