Incase unveiled the Power Slider for the iPhone 3G that more than doubles the battery life of iPhone 3G while providing integrated sync and charge capabilities and complete iPhone protection. Given the limited battery life that users complain about the Incase Power Slider sounds like a great solution to the problem. The only downside is that it makes your iPhone 3G look fat.
The Incase Power Slider serves as both a case and power solution. The optimized power management system provides continuous charge to the internal battery of iPhone 3G. When in use, power drains first from Power Slider so that the device's internal battery remains fully charged and is only depleted once the battery of Power Slider has been drained. An integrated sync mode allows Power Slider users to easily sync and charge their devices while iPhone 3G is in Power Slider. A five-light LED battery status indicator gauges battery life and also denotes sync mode and charging. Included with every Power Slider is a custom USB 2.2 cable that allows for high capacity charging and data exchange for optimal charging and syncing. Additionally, Power Slider is compatible with all USB charging ports that provide 5V at 1A output.

Power Slider will be available Holiday 2008 for a suggested retail price of $99.95 (US) through the Apple Store and the Incase webstore.