Calendar Reviews at calendarreview.com
I was searching the net for online/offline calendars. I was evaluating Jotlet , Google Calendar, 30 boxes and a few more. During a google search, accidentally came across this link and whoa! I thought I had wasted a couple of days searching on my own.
The site is called calendarreview.com and it hosts reviews about some 20 calendars. Good source of information for those who are evaluating Calendar apps. Infact I never thought there were so many calendars existing.
And a good news is that Adobe is working on a Open Source Calendar Framework. You can read more about AOSCF here