On May 2, 2013, the US Patent & Trademark Office published a patent application from Apple that may be revealing an update to iPhoto for iDevices. Apple states that their invention relates to performing on-screen image adjustments, for example, to adjust colors of photos by using color control tools overlaid on the digital images to be adjusted. It's difficult to assess if today's patent revelations cover the current version of iPhoto for iDevices or a possible upgrade. The patent graphics don't reflect the current tools. If you're a camera buff who uses an iDevice for your snapshots, then you may want to check this patent filing out to see if Apple is going to add any new tools that you've been hoping for.