Things all Bionics (and Smart Phones) should have:
Weather App (I use AccuWeather)
Dolphin HD for Internet Browsing (better than the standard browser, and Internet browsing is finally fun on the big (4.3") and fast (4G) Bionic.
Digital Clock Widget (nice big clock, with date, on screen full time)
Catch (for notes)
Google Maps for navigation
Barcode Scanner (amazed at how often I use it)
Mobilo Ringtones (lots of fun ringtones)
Alarm Clock
Screen Filter (dims the screen when used in the dark)
Gesture Search (really cool touchscreen search tool)
Compass (just 'cuz it's a fun app)
Google Sky Map (REALLY fun app)
DroidLight (activates your Bionic camera flash and keeps it on for use as a surprizingly bright flashlight)
Camera (of course, and especially because the Bionic camera is SO damn good)
Verizon's "Data Usage" (in your "Add Widget" menu) to keep track of your data usage if you have a particular plan other than "unlimited".
Many others, but those are some high points.