We know, we know, this is one of those features that people want to see in the soon-to-be-released iPhone 4.0 OS. But, why wait for so long when you can have it now?! However, you will need a jailbroken device for that.

Follow these steps carefully:

• You will need Cydia to apply this patch.
• In Cydia, add this repository: http://iphone.org.hk/apt/
• Search for “show battery percentage”
• Install the patch
• Voila!