OK, so I received (out of the blue) my gemini yesterday. Here is a little review from my whopping 24 hours of ownership.
First impressions
Wow, this thing looks professional. The boxing was as good as anything I have ever received. Th very first time you pick up the gemini it feels solid. I had it delivered to the office and it caused quite a stir. Everyone wanted to have a play (I am a software engineer). The screen is large (for a phone) and the keyboard looks amazing.
So how does it perform
Maybe I was one of the lucky ones, maybe problems are rare, but people are vocal. I dont seem to have any problems - my gemini works in all respects. Anybody worrying about x25 vs x27, doesn't need to. This thing flies. I have installed a few apps via fdroid (didnt give a google account) and they work well. I was particularly impressed with mupen64 (nintendo 64 emulator) which ran full speed without any hiccups. I even connected a game controller to the right hand USB and it worked! I tried some webgl pages which always made my old snapdragon 810 groan, and they worked flawlessly.
That keyboard
Everyone is different, so they will have a different experience. For me, the keyboard is near perfect. I can really punch out words at quite a fast rate. I could never have dreamed of writing this review on a phone screenm it would have been painfull. The only thing that will take time to get used to is the placement of some symbols like : and '. They reuquire the fn key to be pressed, but that is all about getting used to it. Standard letters, and punctuation is in the spot you expect and you can rattle off sentences with ease.
Overall
Very very happy with the gemini. It will be perfect when I dont have to use android