Addicus is the first iPhone game by Get Set Games, a company I started this year with some friends. It's a number-based puzzle game that has you in a race against the clock to add numbers together by clicking on cute, jiggly mushrooms.
It also features:
Dozens of secret bonuses
Multipliers and chain combos
Overdrive mode for crazy hi-scores
Endless replayability
Part of OpenFeint the largest iPhone game community
Online worldwide leaderboards
Integrated with Facebook and Twitter
It was just released today. You can get it here for a special launch price of $0.99: