I installed the trial on my Pearl...an issue on the 81xx devices is screen real estate...there isn't enough room left-to-right, the way Agendus formats things, to show enough info to make it useful for calendar entries. A standard "Today" theme does a much better job.
That's another issue I forgot to mention...all of calendar views were very s-l-o-w on my pearl 8130...when changing between days/weeks etc., in views using the trackball the lag was really long, to the point that you would try again and then end up at the wrong place. Really unworkable for me...
I had the same problem of the app not opening, a battery pull fixed that.
That being said, it was way to slow to be of any use. I downloaded Pocket Informant instead, bought it two hours into the trial. It rocks!
Looks like a cool app...but still a little high for what I would use it for..just with the BB Calendar app could show the entries at the bottom on the month view like this and Pocket Informant...that's all I want is the monthly calendar thing
It's not what you may have been used to. I saw someone state it is like Agendus version 3 version the current Palm version 7. So lot's of functionality not there yet. I have been having issues with contacts not showing up. Their support seems to direct you to their forum where every tom dick and harry are offering advice but the developer. I bought it for only $9.95 as a pre-release so still going to stick it out.