Guys...
What is the main difference between pocket informant and pocket informant calender?
Which one do you prefer and why?
Where would you recommend installing Pocket informant? Main mem or SD card?

PI takes control over your contacts, calender, and tasks etc.., and it's far more powerful than the built-in programs. I've used it for years with my WM devices, and have never looked back.

Not sure about the limitations of PI calender, but I'm sure it blows the built-in away in regard to form and function.

Also, I recommend installing PI to your device for faster access and less potential problems. Nonetheless, it should work from the card, albeit slower...

Hope this helps a bit...

R