I assumed because there is an icon for SMS on my Treo 300 that we can use SMS. But it seems we can only receive and reply. Is that possible? No SMS whatsoever?

Seems one of the benefits of this handheld would be SMS with a keyboard instead of a phone pad which is so cumbersome.

I know we can use AIM and other IM programs but would like to use SMS which leaves an "envelope" and message notification.

Anyone know how to make it work both ways?