Palm P80505RGRS - Tungsten W Smartphone Handbook page 159

Tap the recipient's name, and then tap Add.
3.
To send a message to someone who isn't listed in your Address Book,
TIP
enter their mobile phone number on the To line. The mobile phone number
must be on a compatible SMS network–for example, a GSM network.
Enter the message text.
4.
Tap Send or press Command Stroke
5.
Outbox to send the message later.
Tapping Send does not send any of the other messages in your Outbox.
NOTE
It sends only the current message.
Tap Send
+ E to send the message now, or tap
Tap Outbox
Creating messages
145