It looks like all of the mobile software that I’ve tried on my Palm is falling a bit short of expectations. The software I’ve found is relatively beta to begin with – lot’s of reboots. The larger problem is Chinese characters. Whether creating a new message using chinese, or writing 汉子 inside an existing message, clients other than Ecto seem to come up short.
On another note, I’ve tried out Ecto and MarsEdit and even though I was biased toward MarsEdit, Ecto wins out. Better support for “Rich Text” right in the client without having to resort to HTML. Works great!