Hi Garry Clark,
Many important features of RadRichTextBox are missing as of Q2 and we're working heavily to deliver a few of them for Q3. In the development plans are tables support, spell checking and PDF exporting, so unfortunately, the WPF version might not be available for the beta release, this will be a last-minute decision.
Feel free to contact us again if you have any other questions.
All the best,
the Telerik team
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