Originally Posted by devseev

Since the eDGe is not authorized to access the android marketplace, you need to download .apk files manually from an alternative repository, such as slideme.org, etc. or directly from the developer site. Get the file onto your eDGe (directly via dolphin browser or send from PC via email, usb, sd card, flash, dropbox, etc) access the file via Library/Strorage, and click and hold to install! Some apps don't run, and many run in a small window, but check others' posts re apps that work well full-screen.

If you're asking how to compile an app for android yourself - that's well beyond my skill level.

Re calendar/todo - ince I am an Exchange user at the office, I just use the Nitrodesk Touchdown app (superb!) to have my Outlook calendar/todo list on the eDGe. Haven't tried any other apps for this, but I think others have mentioned that some do indeed work (full-screen) on the edge.