Jumponaut received a number of smaller updates since its launch. They mainly improved some descriptions and added little details to the game.
In the latest update two things have been improved:
1: Gameplay music - Its tune is longer, richer, and more dramatic.
2: After extensive playing I think the slow start phase is lacking some feedback whenever a speedup occurs. It is also practical to get immediate feedback about current drop speed so you don't have to keep track of it. So a nice feedback effect has been added for that.
Feel free to tell how you like it. Jumponaut remains open for future updates.
Have fun;)