I've used Yahoo's calendar for a long time BECAUSE it emails me two times in advance of an event in a time frame I select.

But on my Treo, I don't want to have to connect to the internet and wade through logins and download time to enter an event.

So, I want to know if the two can talk to one another. That is, the calendar that comes with the Treo and Yahoo's online calendar.

Is there someway to keep these two in sync? I would appreciate any suggestions.

Alternatively, if you know of something other than outlook that might do this I would appreciate that too.