Some ways:

1. www.proximitymail.com for PPCs that support Bluetooth.

2. HS-Messenger from http://www.huehnsoftware.com/eng/irmessenger.html

3. Other software of the same kind...

4. Use the MSN Messenger that come in the Pocket PC to do it through the
Internet.

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Helio Diamant - MS/MVP, Mobile Devices
Editor-in-chief
http://www.pocketpcfreak.com
The Hebrew Pocket PC site
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