It syncs with my google calendar on the Captivate. I'm not sure if this will work though for the Edge.
I've tried it on the Viewsonic G Tablet and it worked. It DIDN't work on the Nook Color too well. It installed, but didn't sync.
Maybe somebody could try this?
http://android.pdassi.de/124190/Pock...r_Android.html
I don't have the Edge yet, but I'm planning to get the large size, as suggested for my uses by Boris.