Q:

Is there a way to "undo" in Windows Phone?

In the old days (Pocket PC, Windows Mobile) it was possible to use CTRL+Z on the soft keyboard just like on a full keyboard.
Now in Windows Phone, with no CTRL key, is there a way to "undo" a typing mistake? For full blown Office documents in Word or OneNote it's all too easy to overwrite quite a large chunk of text by mistake. 
What can I do at that "aaaaaaaargh" moment?

A:

I just finished speaking with the Windows Phone support team to help get your question answered. 
There is no "undo" operation in Word Mobile, the documentation is wrong in the product guide and is probably old. Here is the link to the current documentation for Office Mobile. http://www.microsoft.com/windowsphone/en-US/howto/wp7/office/use-office-word-mobile.aspx
As far as a workaround goes, there isn't much you can do other than saving frequently. You can hit back, then select "do not save" to make sure your mistake doesnt overwrite your work.

A:

From my experience with Windows Phone Office, Undo and Redo are available only in Excel.
If you want to ensure that no big chunks of data will be lost during a Word or OneNote document editing, save it as often as you can. Whenever you have that "aaaaaaaargh" moment, back out without saving the document and open it again. This is the only method I'm aware of.
You can upvote a related feature suggestion at windowsphone.uservoice.com.

