Sonic Jump. Presumably Dash is the next entry in a series covering all the basic Sonic actions, so we look forward to Sonic Roll, Sonic Smug Finger-Wag, and Sonic Talk and Ruin Everything.
Sonic Dash hasn't exactly been a well kept secret, but this week's official announcement did spill that the game is based in 3D, and will include leaderboards. Standard stuff, you may feel, but a paucity of details isn't too concerning. After all, if there's one series that's suited for endless running, it has to be Sonic.