PhatWare Corp. has WritePad SDK 4.2, an update to their handwriting recognition SDK (software development kit) for iOS 7.0.

WritePad SDK enables third-party app developers and OEMs [original equipment manufacturers] to leverage handwriting recognition software for iOS 7. The new version of the SDK features improved handwriting recognition engine, updated APIs supporting UNICODE (UTF-16) text encoding for better compatibility, enhanced documentation and sample code.
WritePad SDK sample code and documentation have been also updated.

The WritePad SDK evaluation is free, while commercial redistribution is royalty-based. Go to http://tinyurl.com/kg5bamu for more info.