The Android calendar has been a sore spot for me for a LONG TIME. Going back to the days of the Palm Treo, I found the one and only calendar solution that ever truly satisfied me: DateBk by Pimlico Software. What made it so perfect for me was the "grid view", a.k.a. the week-at-a-glance view that mirrored my old paper date book. The Evo's 4.3" screen is ideal for this style calendar display, and I finally found it with Pocket Informant. I've tried just about every other calendar app and widget for Android, both free and paid. Nothing comes close to PI. It's in the Marketplace as well as the PI web site.