With another quick look at EPIM, I like the fact that it includes email functionality since that would be useful to me on my netbook -- and the unlimited database capacity is a huge (no pun intended) benefit.
Also, may I ask:
-- Do you use the "Notes" function in EPIM?
-- If so, what is your criteria for determining:
` which notes go into EPIM and
` which notes go into UltraRecall?
To be honest, my biggest concern now with introducing a new calendar app into the mix is that I may soon lose track of what information I put where!