Palm Handhelds m100 - Manual (Page 207)

Appendix D Page 200
Literal characters
The backslash ( \ ) character defines that the next character is
transmitted as a literal character, and is not subject to any special
processing ordinarily associated with that character.
Examples:
■ \^ Includes a caret as part of the string
■ \< Includes a < as part of the string
■ \\ Includes a backslash as part of the string