I recently got an iPad for my birthday, and have realised that when I plug my iPad into my laptop to connect with iTunes, the iPad is not charging, like an iPhone or iPod would do. I had a look around and found out that using a usb port doesn't have enough power to charge the iPad when plugged into the laptop. Is the only way to charge my iPad through the mains? Or is there some way to charge the iPad through the laptop, through any software or anything, as this is going to be incredibly annoying otherwise.