The Problem
I use K-9 Mail for email on my Motorola Milestone running Android 2.1. I sometimes receive Calendar invitations by email and K-9 shows this as an attached .ics file. If you try to open this, there is no base application to handle the file type, so nothing happens.
The Solution
Download and install the ICS Bot app from the Android Market. Now when you open an email with an attached .ics file, simply click on the Open button on the file and it will bring up a new Calendar entry with the information pre-populated. Simply save the new Calendar entry and voila! It's in your Calendar.
