Yes It's very hard to make a profit. Through the help of some warm people , I started to learn how to use twitter now.
Currently we don't have any plan to make PC games. We can port the game to PC very soon , but we design this game play for touch device , I am not sure whether it suit for PC .
I would suggest resetting the 8 hour timer for people who couldn't purchase it in next update then, the package will probably be gone by the time it's fixed :(
Finished first pack of 4 levels, enjoying it, the difficulty goes up pretty quickly at times but it's nice and surprising that it's non linear (althought it may be just a tad much at time). In any case enjoying it so far.
We will fix it in the next release. It will be released in a few days