the author of this app says:
Pixer lets handheld users send and receive picture messages directly from a wireless handheld to any e-mail address or MMS phone.
Users can create their own handwritten text messages, or choose from a rich catalog of templates!
Messages can contain photographs, and Pixer supports several formats, including SD and Memory Stick. Users can even beam their picture messages to the Ericsson T68 cell phone!
Account setup is free.
- Handspring Treo 180/180g