As I expectedThey never appealed to me personally, but the main reason for not attempting that sort of thing so far is the screen size. The accuracy is already a bit low on keys, but adding in gestures without a really, really effective correction / prediction algorithm would be a train wreck. The algorithm being used now is as basic as it gets, since the way the keyboard has to be added is already a lot more than if it were natively supported. It doesn't include any sort of spell check, which would be a necessity.
Nice. I'm actually glad you did a paid version of the keyboard given all the work you've done on the whole Samsprung development project. I didn't buy the Play Store version of the keyboard but I made another contribution today towards the Samsprung development project. I think everyone using the Samprung launcher and/or keyboard should at a minimum buy the Play Store version of the keyboard just to contribute in some way towards this project. It's a very small price to pay for something that has made our cover screen much better than what Samsung has done with it. Keep up the good work, twistedumbrella!!Added sound and vibration options. The sound may not sync perfectly. Still working out a better way to do that.
I've also decided to make the Google Play release a paid app. It will only cost $1, but I need to start recovering a little of the cost. The version here will still be free. The only real difference will be that the version on Google Play is verified by Google, if that means anything.