You can now buy Photoshop Touch for the iPhone and Android, and it pretty much does everything you can do on the iPad version.

It’ll costs $5, and features filters, to layers (and super-easy layer styles), scribble select tool to the Camera Fill feature (insert camera images straight into your document), which is even more useful on the portable iPhone.

You can also use the app in any orientation, even upside-down in portrait.

At least this is a lot less than the desktop version.