Phone is definitely overwhelming coming from a life long Blackberry owner..
overwhelming in a good way though.
I'm just frustrated that I'm back at step 1 all over again with having to learn a new device and what I can do with it.
I still don't completely understand what a widget is, how to root, what apps I need to download, etc.
I'm coming from BB as well and not looking back.
A Widget is basically the same as an App Launcher Icon but with advanced functionality. Like you can click on the Calendar Icon to open it or you can use a Calendar Widget and have the entire month show in full on one of your Home Screens for instant access (there are other Calendar Widget settings as well). Or ScoreMobile, you can just have the app icon on screen and click on it to open it every time or you can have the Widget on a Home Screen with up to 5 leagues constantly updating scores and game times at a polling interval you choose. Click on the widget and it opens the app itself. Really cool.
Rooting is NOT necessary but it can be advantageous. I'd recommend you familiarize yourself with the OS and Sense UI as is for a while. Customize your phone and add some apps based on your desires/needs and go from there. Root it if you like but you probably want to wait until you find something you can't live without that requires root access.
Many of the Stock Apps built into the UI are pretty decent but there are also many great alternatives that are Free in the Android Market and elsewhere that can really help you master your phone. There are also numerous apps that resemble or directly mimic BB apps that you can add to have the best of both worlds. Supposedly BBM for Android is due out soon.
Here's a list to help you get started, these are the apps I'm currently using. Your tastes and requirements are no doubt different than mine and this list is by no means permanent on my 'Bolt either ... LOL.
Some of these replace stock apps, some are already on the phone and many are just my personal faves based on what I want from the device. Your mileage may vary.
Additional info/descriptions of 95% of these apps can be found in the Market.
App Name Purpose
Adobe AIR Needed for another app to run
Amazon Kindle Reader Kindle e-book reader
ASTRO File Manager File Manager - must have for SD card
c:geo GeoCaching App
Douglas Fur's Call of the Wild Pinball Pinball table
Dropbox File Sharing
Free Golf GPS Range Finder Golf Course GPS
FreeCaddie Golf GPS Golf Course GPS
Google Maps (update) Maps and Navigation
GPS Status and Toolbox Check and force update of GPS
Handcent Smileys Plugin Handcent extra smileys
Handcent SMS SMS/MMS Messaging
History Eraser Clears caches and logs
HoneyDew Cross-platform to-do list
I Heart Radio I Heart Radio
IMDB Movies and TV IMDB Movie Database
K-9 Mail Mail Client
Live Holdem Poker Pro Poker
MixZing Media Player Music Player with EQ
My bank's app Online Banking
Netflix Queue Manager Netflix
Opera Mobile Web Browser Web Browser
Pandora Radio Pandora Radio
PdaNet Tethering app
Phone Info Turn off 4G quickly and other uses
Photobucket Mobile Photobucket
Pinball Deluxe Pinball - 4 tables
PodTrapper Podcast Manager Podcast/Vodcast Manager/Player
Poynt Find Gas, Restaurants, etc
QQ Player Video Player multi-format
QR Droid QR code reader
QuickPic Photo Viewer and Editor
Rainy Days Standalone Weather Radar only
Scanner Radio Police and Fire scanner
ScoreMobile for Android Sports Scores with great Widget
Slacker Slacker Radio
SpeedX 3D Game (works with red/blue 3d glasses)
Street View on Google Maps Not an APP - Plugin for Google Maps
TwonkyServer Mobile For DLNA access on wifi network
US Army Survival Guide You never know ?
Visual Voicemail Voicemail app
Wheres My Droid Phone Finder
Yahoo! Mail Yahoo Mail client
YouTube YouTube app
All of the above work and play together perfectly on my 'Bolt.