Adobe's Photoshop Mix offering for Apple's slates arrived a few months back alongside its Ink and Slide drawing tools, and it's not letting the app sit too long before adding new features. The latest version adds an undo/redo option that'll help with missteps, swaps background/foreground images by dragging thumbnails and saves full-res JPEG and PNG files to that iPad you're working on. For those of us that don't keep a lot of work files on our tablets, you can now import images from your Dropbox repository to edit or add to Creative Cloud-stored PSDs whilst on-the-go. The update is now available over at iTunes, so if your device hasn't yet alerted you or if you've yet to take the slate-style editing for a spin, have at it.