They have a few videos on Youtube showing fine cursor control, but I wonder if they are not faked.
The touch sensors in the keys -- as seen in their prototype manufacturing videos -- seem to be pretty coarse.
It needs an independent review before I am going to trust this.
And no, I don't want to type on a flat keyboard, even when travelling.
In general, keyboards should go the other way: A tented split keyboard with contoured keys and a vertical mouse beats this hands down.