Obi do a low-mid-range phone too, but without the swappable battery (cheaper phones seem more likely to have swappable batteries these days... ).
Strangely, the 'Obi Origin Story' posted on their website contains an Ali G reference "Big-up to the Slough massive though!" (both in http://www.obiworldphone.com/global/story as well as http://www.obiworldphone.com/uk/story ). Odd, because when I think of Ali G and mobile phones, it because he passes a Nokia to lady and says "Set to vibrate and finish yourself off" https://www.youtube.com/watch?v=CVTRX7lp9uo
I had written the following, but I have removed it from the above post because it upon re-reading the website, it appears I imagined it:
"Beyond the styling, nothing really jumps out at me, except for the 'floating display', which means that the screen isn't taking the full mass of the phone if it is dropped. This simple concept appeals to the mechanical engineer in me - though of course a Mech Eng would want to do a lot of destructive testing, naturally, before retiring a verdict."