iOS is due out later today and apps are releasing new versions to add compatibility. Just a few that look good to me:
- 1Password now provides Drag and Drop of user credentials out of the app plus Drag and Drop almost anything into the app.
- Annotable gets Drag and Drop of images and text in and annotated image out
- Dropbox adds support for the new Files app integration.
- Notability with Drag and Drop of a large variety of object types
- PDF Expert gets Drag and Drop of images from the usual places plus drag and drop emails from Spark if that's your thing.
- ScannerPro with Drag and Drop Support of images in and scans out
- Textastic now has a new Document Picker plus you can drag a Git repo in from Working Copy to edit documents.
- 1Writer gets Open in Place plus Drag and Drop